diff --git a/.gitignore b/.gitignore
index 7c343a8..c5487d2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,6 +55,7 @@ coverage.xml
 
 # Translations
 *.mo
+*.po~
 
 # Django stuff:
 *.log
diff --git a/MANIFEST.in b/MANIFEST.in
index 7a4e0a7..d99523a 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,2 +1,4 @@
 include LICENSE
 include README_zh.md
+recursive-include src *LICENSE*
+recursive-include src *README*
diff --git a/README.md b/README.md
index fc983d2..d0dbb5c 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,8 @@ work, please recommend it to your friends, Thanks.
 - Does not work in old versions of μTorrent which did not provided API `getpeers`.
 - **Please use this script in local network**, μTorrent Web API does not
   support HTTPS connections, it is not safe.
+- If you can not accept read/write the ipfilter.dat file frequently, it can be
+  soft/symbolic link to a RAM disk.
 - I took preventive measures, if you stiil found a normal peer has been banned,
   please tell us via [issues board](https://github.com/SeaHOH/ban-peers/issues).
 
@@ -88,19 +90,21 @@ Network File:
 
 ```
 $ ban_peers -h
-Welcome using Ban-Peers 0.9.1
+Welcome using Ban-Peers 0.9.2
 
-Usage: ban_peers [-H IP|DOMAIN] [-p PORT] [-a USERNAME:PASSWORD] [-e HOURS]
-                 [-t MINUTES] [-f FORMAT] [-C] [-X] [-P] [-L] [-N] [-R] [-U]
-                 [-A] [-O] [-h] [-v]
-                 [IPFILTER-PATH]
+usage: ban_peers.pyz [-H IP|DOMAIN] [-p PORT] [-a USERNAME:PASSWORD] [-e HOURS]
+                     [-t MINUTES] [-f FORMAT] [-C] [-X] [-P] [-L] [-N] [-R]
+                     [-U] [-A] [-O] [-s [CONFIG-FILE] | -l [CONFIG-FILE]] [-h]
+                     [-v]
+                     [IPFILTER-PATH]
 
 Checking & banning BitTorrent leech peers via Web API, remove ads, working for
 uTorrent.
 
 Positional Arguments:
-    IPFILTER-PATH   Path of ipfilter dir/file, wait input if empty. IMPORTANT
-                    NOTICE: must be the uTorrent settings path!
+    IPFILTER-PATH   Path of ipfilter dir/file, will try load from config file
+                    or wait input if empty. IMPORTANT NOTICE: must be the
+                    uTorrent settings path!
 
 Optional Arguments:
     -H IP|DOMAIN, --host IP|DOMAIN
@@ -110,11 +114,11 @@ Optional Arguments:
     -a USERNAME:PASSWORD, --authorization USERNAME:PASSWORD
                     WebUI authorization, wait input if required
     -e HOURS, --expire HOURS
-                    Ban expire time for peers, default 12 HOURS
+                    Ban expire time for peers, default 12 hours
     -t MINUTES, --time-allowed-refuse MINUTES
                     How much time to keep connecting before temporary banned
-                    refused upload peers, at least 5 MINUTES, default 10
-                    MINUTES
+                    refused upload peers, at least 5 minutes, default 10
+                    minutes
     -f FORMAT, --log-header FORMAT
                     Format of log header, see time.strftime, default %H:%M:%S
     -C, --resolve-country
@@ -136,28 +140,25 @@ Optional Arguments:
                     Remove ads via set Advanced Settings, only working for
                     localhost, and to fail in older uTorrent
     -O, --no-close-pairing
-                    Don't turn off Web Pairing setting after remove ads
+                    Don't turn off Web Pairing setting after
+    -s [CONFIG-FILE], --save-config [CONFIG-FILE]
+                    Save current arguments to a config file except "--remove-
+                    ads", "--help" and "--version". Save to default location
+                    "<YOUR CONFIG DIR>/BanPeers/ban_peers.conf" if empty input
+    -l [CONFIG-FILE], --load-config [CONFIG-FILE]
+                    Load arguments from a config file, will not overlaid the
+                    inputted arguments. Load from current directory (use
+                    conf/ini/cfg as extension name) or default location if
+                    empty input
     -h, --help      Show this help message and exit
     -v, --version   Show version and exit
 ```
 
-```markdown
-$ ban_peers -p 12345 -a username:password /var/lib/utserver
-Welcome using Ban-Peers 0.9.1
-19:44:33 Set uTorrent setting 'webui.allow_pairing' to True
-19:44:35 Set uTorrent setting 'gui.show_plus_upsell_nodes' to False  **_Remove upsell tip in the sidebar_**
-19:44:35 Set uTorrent setting 'webui.allow_pairing' to False  **_disallow pairing_**
-19:44:35 Set uTorrent setting 'bt.use_rangeblock' to False  **_Won't restore after quit_**
-19:44:35 Set uTorrent setting 'ipfilter.enable' to True
-19:44:35 uTorrent auto-banning script start running
-Choose your operation: (Q)uit, (S)top, (R)estart, (P)ause/Proceed
-```
-
-or
-
 ```markdown
 $ ban-peers
-Welcome using Ban-Peers 0.9.1
+Welcome using Ban-Peers 0.9.2
+No ipfilter has be inputted, try load from config file
+Load ipfilter from config file fail, found nothing
 Please input uTorrent settings folder path or ipfilter file path:
 /var/lib/utserver
 Please input WebUI username: username
@@ -167,8 +168,29 @@ Please input WebUI password: password  **_No cover_**
 19:44:35 Set uTorrent setting 'webui.allow_pairing' to False  **_disallow pairing_**
 19:44:35 Set uTorrent setting 'bt.use_rangeblock' to False  **_Won't restore after quit_**
 19:44:35 Set uTorrent setting 'ipfilter.enable' to True
-19:44:35 uTorrent auto-banning script start running
+19:44:35 Auto-banning script start running
 Choose your operation: (Q)uit, (S)top, (R)estart, (P)ause/Proceed
+19:44:36 Auto-banning script quit running
+...
+
+...
+$ ban_peers -p 12345 -a username:password /var/lib/utserver --save-config
+Welcome using Ban-Peers 0.9.2
+Start saving config file "<YOUR CONFIG DIR>/BanPeers/ban_peers.conf"
+Save argument "ipfilter = /var/lib/utserver"
+Save argument "port = 12345"
+Save argument "authorization = username:password"
+...
+
+...
+$ ban-peers -p 54321
+Welcome using Ban-Peers 0.9.2
+No ipfilter has be inputted, try load from config file
+Start loading config file "<YOUR CONFIG DIR>/BanPeers/ban_peers.conf"
+Load argument "ipfilter = /var/lib/utserver"
+**_Doesn't load inputted argument port_**
+Load argument "authorization = username:password"
+...
 ```
 
 - Quit: exit the script.
diff --git a/README_zh.md b/README_zh.md
index 09ca7f1..f640768 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -20,6 +20,7 @@
 # 注意事项
 - 无法在未提供 `getpeers` API 的旧版本 μTorrent 中正常工作。
 - **请在本地网络内使用此脚本**，μTorrent 网页 API 不支持 HTTPS 连接，它并不安全。
+- 如果无法接受频繁读写 ipfilter.dat 文件，可以将它软链接到内存盘。
 - 虽然已采取一些预防措施，如果你仍然发现有正常的对端被错误屏蔽，
   请反馈到 [issues 板块](https://github.com/SeaHOH/ban-peers/issues)。
 
@@ -78,18 +79,18 @@ Android:
 
 ```
 ban_peers -h
-欢迎使用 Ban-Peers 0.9.1
+欢迎使用 Ban-Peers 0.9.2
 
-用 法: ban_peers [-H IP|域名] [-p 端口] [-a 用户名:密码] [-e 小时] [-t 分钟]
-                 [-f 格式] [-C] [-X] [-P] [-L] [-N] [-R] [-U] [-A] [-O] [-h]
-                 [-v]
-                 [IP屏蔽配置路径]
+用 法: ban_peers.pyz [-H IP|域名] [-p 端口] [-a 用户名:密码] [-e 小时]
+                     [-t 分钟] [-f 格式] [-C] [-X] [-P] [-L] [-N] [-R] [-U]
+                     [-A] [-O] [-s [配置文件] | -l [配置文件]] [-h] [-v]
+                     [IP屏蔽配置路径]
 
 通过网页 API 检查并屏蔽 BitTorrent 吸血对端，移除广告，工作于 uTorrent。
 
 位置参数:
-    IP屏蔽配置路径  ipfilter 目录或文件路径，留空将等待输入。重要提示: 必须是
-                    uTorrent 配置使用的路径!
+    IP屏蔽配置路径  ipfilter 目录或文件路径，留空将尝试从配置文件加载，或等待输
+                    入。重要提示: 必须是 uTorrent 配置使用的路径!
 
 可选参数:
     -H IP|域名, --host IP|域名
@@ -124,27 +125,23 @@ ban_peers -h
                     本的 uTorrent
     -O, --no-close-pairing
                     移除广告后，不关闭网络配对配置项
+    -s [配置文件], --save-config [配置文件]
+                    保存当前参数到一个配置文件，不包括 "--remove-ads"、"--help"
+                    和 "--version"，如果输入留空则保存到默认位置 "<你的配置目录>
+                    \BanPeers\ban_peers.conf"
+    -l [配置文件], --load-config [配置文件]
+                    从一个配置文件加载参数，不会覆盖已输入的参数，如果输入留空
+                    则尝试从当前目录 (使用 conf/ini/cfg 作为扩展名) 或默认位置
+                    加载
     -h, --help      显示此帮助信息并退出
     -v, --version   显示版本信息并退出
 ```
 
-```markdown
-C:\Users\username>ban_peers -p 12345 -a username:password X:\uTorrent
-欢迎使用 Ban-Peers 0.9.1
-19:44:33 设定 uTorrent 配置 'webui.allow_pairing' 到 True  **_允许配对_**
-19:44:35 设定 uTorrent 配置 'gui.show_plus_upsell_nodes' 到 False  **_移除侧栏付费版升级提示_**
-19:44:35 设定 uTorrent 配置 'webui.allow_pairing' 到 False  **_禁止配对_**
-19:44:35 设定 uTorrent 配置 'bt.use_rangeblock' 到 False  **_脚本退出后不会自动恢复_**
-19:44:35 设定 uTorrent 配置 'ipfilter.enable' 到 True
-19:44:35 uTorrent 自动屏蔽脚本开始运行
-请选择你要执行的操作: (Q)退出，(S)停止，(R)重新开始，(P)暂停/恢复
-```
-
-或者
-
 ```markdown
 C:\Users\username>ban_peers
-欢迎使用 Ban-Peers 0.9.1
+欢迎使用 Ban-Peers 0.9.2
+没有输入 ipfilter，尝试从配置文件加载
+从配置文件加载 ipfilter 失败，什么都没有找到
 请输入 uTorrent 配置文件夹路径，或者 ipfilter 文件路径:
 X:\uTorrent
 请输入 WebUI 用户名: username
@@ -156,6 +153,27 @@ X:\uTorrent
 19:44:35 设定 uTorrent 配置 'ipfilter.enable' 到 True
 19:44:35 uTorrent 自动屏蔽脚本开始运行
 请选择你要执行的操作: (Q)退出，(S)停止，(R)重新开始，(P)暂停/恢复
+19:44:36 自动屏蔽脚本退出运行
+...
+
+...
+C:\Users\username>ban_peers -p 12345 -a username:password X:\uTorrent --save-config
+欢迎使用 Ban-Peers 0.9.2
+开始保存配置文件 "<你的配置目录>\BanPeers\ban_peers.conf"
+保存参数 "ipfilter = X:\uTorrent"
+保存参数 "port = 12345"
+保存参数 "authorization = username:password"
+...
+
+...
+C:\Users\username>ban_peers -p 54321
+欢迎使用 Ban-Peers 0.9.2
+没有输入 ipfilter，尝试从配置文件加载
+开始保存配置文件 "<YOUR CONFIG DIR>\BanPeers\ban_peers.conf"
+加载参数 "ipfilter = X:\uTorrent"
+**_没有加载已输入的 port 参数_**
+加载参数 "authorization = username:password"
+...
 ```
 
 - 退出：退出此脚本。
diff --git a/src/ban_peers/__init__.py b/src/ban_peers/__init__.py
index a54da9a..260b798 100644
--- a/src/ban_peers/__init__.py
+++ b/src/ban_peers/__init__.py
@@ -8,7 +8,7 @@
 uTorrent.
 """)
 __app_name__ = 'Ban-Peers'
-__version__ = '0.9.1'
+__version__ = '0.9.2'
 __author__ = 'SeaHOH'
 __email__ = 'seahoh@gmail.com'
 __license__ = 'MIT'
@@ -397,12 +397,71 @@ class List2Attr:
             'RELEVANCE': 21
         }
     }
-    _32bit1 = ~(-1 << 32)
-    _32bit_signed_mini = -1 << 31
+    
+    hash:str
+    status:int
+    name:str
+    size:int
+    progress:int
+    downloaded:int
+    uploaded:int
+    ratio:int
+    upspeed:int
+    downspeed:int
+    eta:int
+    label:str
+    peers_connected:int
+    peers_swarm:int
+    seeds_connected:int
+    seeds_swarm:int
+    availability:float
+    queue_position:int
+    remaining:int
+    download_url:str
+    rss_feed_url:str
+    status_message:str
+    stream_id:str
+    date_added:int
+    date_completed:int
+    app_update_url:str
+    save_path:str
+
+    priority:int
+    first_piece:int
+    num_pieces:int
+    streamable:int
+    encoded_rate:int
+    duration:int
+    width:int
+    height:int
+    stream_eta:int
+    streamability:int
+
+    country:str
+    ip:str
+    revdns:str
+    utp:int
+    port:int
+    client:str
+    flags:str
+    reqs_out:str
+    reqs_in:str
+    waited:int
+    hasherr:int
+    peerdl:int
+    maxup:int
+    maxdown:int
+    queued:int
+    inactive:int
+    relevance:int
+
     _cache:dict
     _list:list
     _type:dict
 
+    _32bit1 = ~(-1 << 32)
+    _32bit_signed_mini = -1 << 31
+
     def __init__(self, list:List[Union[int, str]], type:str) -> None:
         object.__setattr__(self, '_cache', {})
         object.__setattr__(self, '_list', list)
@@ -426,7 +485,7 @@ def __getattr__(self, name:str) -> Union[int, float, str]:
         self._cache[name] = value
         return value
 
-    def __setattr__(self, name:str, value:Union[int, str]) -> None:
+    def __setattr__(self, name:str, value:Union[int, float, str]) -> None:
         name = name.upper()
         self._list[self._type[name]]
         if name == 'IP' and isinstance(value, str) and value[:1] == '[':
@@ -456,8 +515,7 @@ def __init__(self,
         try:
             socket().connect((host, port))
         except:
-            raise ValueError(_('Unable to connect %(host)s:%(port)d')
-                             % {'host': host, 'port': port})
+            raise ValueError(_('Unable to connect %(host)s:%(port)d') % vars())
         self.file_ipfilter = ipfilter
         self._url_root = f'http://{host}:{port}/gui/'
         self._req = Request(self._url_root)
@@ -637,7 +695,7 @@ def set_setting(self, s:str, v:Union[int, str, bool], log:bool=True) -> None:
             self.log(_('Set uTorrent setting %(name)r to %(value)s')
                      % {'name': s, 'value': v})
 
-    def get_props(self, hash:str) -> Dict:
+    def get_props(self, hash:str) -> dict:
         result = json.load(self.request(params={
             'action': 'getprops',
             'hash': hash
@@ -675,9 +733,6 @@ def ban_peers(self) -> None:
     def ban_push(self, hash:str, peer:List2Attr, reason:str='') -> None:
         ct = int(time.time())
         ip = peer.ip
-        assert isinstance(ip, str)
-        assert isinstance(peer.downloaded, int)
-        assert isinstance(peer.uploaded, int)
         try:
             d = self._statistics.pop(ip)
         except KeyError:
@@ -714,14 +769,6 @@ def log(msg):
         reasons = []
         ct = time.monotonic()
         for torrent in self.get_torrents():
-            assert isinstance(torrent.hash, str)
-            assert isinstance(torrent.name, str)
-            assert isinstance(torrent.size, int)
-            assert isinstance(torrent.progress, int)
-            assert isinstance(torrent.downloaded, int)
-            assert isinstance(torrent.eta, int)
-            assert isinstance(torrent.availability, float)
-            assert isinstance(torrent.remaining, int)
             size_millesimal = torrent.size // 1000
             seeding = torrent.progress >= 1000  # uTorrent bug?
             hash = torrent.hash
@@ -732,10 +779,8 @@ def log(msg):
             if self.check_fake_progress or self.check_serious_leech:
                 files = list(self.get_files(hash))
                 size_todl = sum(file.size for file in files if file.priority)
-                assert isinstance(size_todl, int)
                 size_todl_tenth = size_todl // 10
                 size_downloaded = sum(file.downloaded for file in files)
-                assert isinstance(size_downloaded, int)
                 size_last_downloaded = torrent.downloaded - size_downloaded
                 time_fp = 60
                 ratio_sl = 10
@@ -760,19 +805,6 @@ def log(msg):
                                        _1m // 2 if size_todl > _10g else _1m)
             allow_banned_refused_upload = torrent.availability > 10
             for peer in self.get_peers(hash):
-                assert isinstance(peer.country, str)
-                assert isinstance(peer.ip, str)
-                assert isinstance(peer.port, int)
-                assert isinstance(peer.client, str)
-                assert isinstance(peer.flags, str)
-                assert isinstance(peer.progress, int)
-                assert isinstance(peer.downspeed, int)
-                assert isinstance(peer.upspeed, int)
-                assert isinstance(peer.waited, int)
-                assert isinstance(peer.uploaded, int)
-                assert isinstance(peer.downloaded, int)
-                assert isinstance(peer.inactive, int)
-                assert isinstance(peer.relevance, int)
                 if peer.ip in self.ipfilter or peer.upspeed < 256 and \
                         peer.progress == peer.relevance == peer.downspeed == 0:
                     continue
@@ -816,7 +848,7 @@ def log(msg):
                         assert isinstance(_sp, tuple)
                         last_progress, last_uploaded, t = _sp
                         fo = None
-                    except (KeyError, TypeError):
+                    except (KeyError, AssertionError):
                         fo = True
                     if fo or peer.progress < last_progress:
                         last_progress = peer.progress
@@ -997,7 +1029,7 @@ def log(self, *args, **kwargs) -> None:
 
     def run(self, pair=None, show_operations:bool=True) -> None:
         def log(state):
-            self.log(_('Auto-banning script %(state)s running') % {'state': state})
+            self.log(_('Auto-banning script %(state)s running') % vars())
 
         if self.running:
             return
@@ -1134,9 +1166,8 @@ def get_session(self) -> None:
         self._session = result['session']
 
     def set_setting(self, s:str, v:Union[int, str, bool]) -> None:
-        if self._session is None:
+        while self._session is None:
             self.get_session()
-        assert isinstance(self._session, str)
         while True:
             result = json.load(self.request({
                 'session': self._session,
@@ -1179,9 +1210,10 @@ def __exit__(self, etype, value, tb) -> Literal[True]:
         return True  # Make no Exception would be raised
 
 
-def main(args=None):
+def main(argv=None):
     import inspect
     import argparse
+    from . import config
 
     try:
         tr = translation('argparse')
@@ -1205,8 +1237,9 @@ def formatter_class(prog:str, *args, **kwargs) -> argparse.HelpFormatter:
     parser.add_argument('ipfilter', nargs='?',
                         metavar=_('IPFILTER-PATH'),
                         help=_(
-                        'Path of ipfilter dir/file, wait input if empty. '
-                        'IMPORTANT NOTICE: must be the uTorrent settings path!'))
+                        'Path of ipfilter dir/file, will try load from config '
+                        'file or wait input if empty. IMPORTANT NOTICE: must be '
+                        'the uTorrent settings path!'))
     parser.add_argument('-H', '--host', type=str,
                         metavar=_('IP|DOMAIN'),
                         help=_(
@@ -1235,8 +1268,8 @@ def formatter_class(prog:str, *args, **kwargs) -> argparse.HelpFormatter:
                         metavar=_('FORMAT'),
                         help=_(
                         'Format of log header, see time.strftime, '
-                        'default %(time)s')
-                        % {'time': kwargs['log_header_fmt'].replace("%", "%%")})
+                        'default %(header)s')
+                        % {'header': kwargs['log_header_fmt'].replace("%", "%%")})
     parser.add_argument('-C', '--resolve-country',
                         action='store_true',
                         help=_(
@@ -1276,6 +1309,26 @@ def formatter_class(prog:str, *args, **kwargs) -> argparse.HelpFormatter:
                         action='store_true',
                         help=_(
                         'Don\'t turn off Web Pairing setting after'))
+    cgroup = parser.add_mutually_exclusive_group()
+    cgroup.add_argument('-s', '--save-config', nargs='?', dest='config',
+                        type=config.FileType('w'),
+                        const=config._default_config_file,
+                        metavar=_('CONFIG-FILE'),
+                        help=_(
+                        'Save current arguments to a config file except '
+                        '"--remove-ads", "--help" and "--version". Save to '
+                        'default location "%(config)s" if empty input')
+                        % {'config': config._default_config_file})
+    cgroup.add_argument('-l', '--load-config', nargs='?', dest='config',
+                        type=config.FileType('r'),
+                        const=config.current_dir_config_file() or
+                              config._default_config_file,
+                        metavar=_('CONFIG-FILE'),
+                        help=_(
+                        'Load arguments from a config file, will not overlaid '
+                        'the inputted arguments. Load from current directory '
+                        '(use conf/ini/cfg as extension name) or default '
+                        'location if empty input'))
     parser.add_argument('-h', '--help',
                         action='store_true',
                         help=_(
@@ -1284,7 +1337,7 @@ def formatter_class(prog:str, *args, **kwargs) -> argparse.HelpFormatter:
                         action='store_true',
                         help=_(
                         'Show version and exit'))
-    args = parser.parse_args(args)
+    args = parser.parse_args(argv)
 
     if args.version:
         print(__app_name__, __version__)
@@ -1297,9 +1350,37 @@ def formatter_class(prog:str, *args, **kwargs) -> argparse.HelpFormatter:
         except ImportError:
             pass
         print()
-        print(parser.format_help())
+        parser.print_help()
         sys.exit()
 
+    def get_logger(action):
+        def log(name, value):
+            action
+            print(_('%(action)s argument "%(name)s = %(value)s"') % vars())
+        return log
+
+    auto_loaded = False
+    if args.ipfilter is None and args.config is None:
+        print(_('No ipfilter has be inputted, try load from config file'))
+        # An automatic try, ignore errors
+        parser.error = lambda m: None
+        try:
+            parser.parse_args(['-l'], args)
+        except TypeError:
+            pass
+        finally:
+            auto_loaded = True
+    if args.config:
+        if args.config.writable():
+            print(_('Start saving config file "%(name)s"') % {'name': args.config.name})
+            config.save(vars(args), args.config, get_logger(_('Save')))
+        else:
+            print(_('Start loading config file "%(name)s"') % {'name': args.config.name})
+            config.load(vars(args), args.config, get_logger(_('Load')))
+        args.config.close()
+    if args.ipfilter is None and auto_loaded:
+        print(_('Load ipfilter from config file fail, found nothing'))
+
     if args.host:
         kwargs['host'] = args.host
     if args.port:
diff --git a/src/ban_peers/appdirs.py b/src/ban_peers/appdirs.py
new file mode 100644
index 0000000..5d274c0
--- /dev/null
+++ b/src/ban_peers/appdirs.py
@@ -0,0 +1,603 @@
+# -*- coding: utf-8 -*-
+# type: ignore
+# Copyright (c) 2005-2010 ActiveState Software Inc.
+# Copyright (c) 2013 Eddy Petrișor
+
+"""Utilities for determining application-specific dirs.
+
+See <https://github.com/ActiveState/appdirs> for details and usage.
+"""
+# Dev Notes:
+# - MSDN on where to store app data files:
+#   http://support.microsoft.com/default.aspx?scid=kb;en-us;310294#XSLTH3194121123120121120120
+# - Mac OS X: http://developer.apple.com/documentation/MacOSX/Conceptual/BPFileSystem/index.html
+# - XDG spec for Un*x: https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+
+__version__ = "1.4.4"
+__version_info__ = tuple(int(segment) for segment in __version__.split("."))
+
+import sys
+import os
+
+PY3 = sys.version_info[0] == 3
+
+if PY3:
+    unicode = str
+
+if sys.platform.startswith('java'):
+    import platform
+    os_name = platform.java_ver()[3][0]
+    if os_name.startswith('Windows'): # "Windows XP", "Windows 7", etc.
+        system = 'win32'
+    elif os_name.startswith('Mac'): # "Mac OS X", etc.
+        system = 'darwin'
+    else: # "Linux", "SunOS", "FreeBSD", etc.
+        # Setting this to "linux2" is not ideal, but only Windows or Mac
+        # are actually checked for and the rest of the module expects
+        # *sys.platform* style strings.
+        system = 'linux2'
+else:
+    system = sys.platform
+
+
+
+def user_data_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        Mac OS X:               ~/Library/Application Support/<AppName>
+        Unix:                   ~/.local/share/<AppName>    # or in $XDG_DATA_HOME, if defined
+        Win XP (not roaming):   C:\Documents and Settings\<username>\Application Data\<AppAuthor>\<AppName>
+        Win XP (roaming):       C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>
+        Win 7  (not roaming):   C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>
+        Win 7  (roaming):       C:\Users\<username>\AppData\Roaming\<AppAuthor>\<AppName>
+
+    For Unix, we follow the XDG spec and support $XDG_DATA_HOME.
+    That means, by default "~/.local/share/<AppName>".
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        const = roaming and "CSIDL_APPDATA" or "CSIDL_LOCAL_APPDATA"
+        path = os.path.normpath(_get_win_folder(const))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Application Support/')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_DATA_HOME', os.path.expanduser("~/.local/share"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def site_data_dir(appname=None, appauthor=None, version=None, multipath=False):
+    r"""Return full path to the user-shared data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "multipath" is an optional parameter only applicable to *nix
+            which indicates that the entire list of data dirs should be
+            returned. By default, the first item from XDG_DATA_DIRS is
+            returned, or '/usr/local/share/<AppName>',
+            if XDG_DATA_DIRS is not set
+
+    Typical site data directories are:
+        Mac OS X:   /Library/Application Support/<AppName>
+        Unix:       /usr/local/share/<AppName> or /usr/share/<AppName>
+        Win XP:     C:\Documents and Settings\All Users\Application Data\<AppAuthor>\<AppName>
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)
+        Win 7:      C:\ProgramData\<AppAuthor>\<AppName>   # Hidden, but writeable on Win 7.
+
+    For Unix, this is using the $XDG_DATA_DIRS[0] default.
+
+    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+    elif system == 'darwin':
+        path = os.path.expanduser('/Library/Application Support')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        # XDG default for $XDG_DATA_DIRS
+        # only first, if multipath is False
+        path = os.getenv('XDG_DATA_DIRS',
+                         os.pathsep.join(['/usr/local/share', '/usr/share']))
+        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
+        if appname:
+            if version:
+                appname = os.path.join(appname, version)
+            pathlist = [os.sep.join([x, appname]) for x in pathlist]
+
+        if multipath:
+            path = os.pathsep.join(pathlist)
+        else:
+            path = pathlist[0]
+        return path
+
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_config_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific config dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user config directories are:
+        Mac OS X:               ~/Library/Preferences/<AppName>
+        Unix:                   ~/.config/<AppName>     # or in $XDG_CONFIG_HOME, if defined
+        Win *:                  same as user_data_dir
+
+    For Unix, we follow the XDG spec and support $XDG_CONFIG_HOME.
+    That means, by default "~/.config/<AppName>".
+    """
+    if system == "win32":
+        path = user_data_dir(appname, appauthor, None, roaming)
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Preferences/')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_CONFIG_HOME', os.path.expanduser("~/.config"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
+    r"""Return full path to the user-shared data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "multipath" is an optional parameter only applicable to *nix
+            which indicates that the entire list of config dirs should be
+            returned. By default, the first item from XDG_CONFIG_DIRS is
+            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set
+
+    Typical site config directories are:
+        Mac OS X:   same as site_data_dir
+        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
+                    $XDG_CONFIG_DIRS
+        Win *:      same as site_data_dir
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)
+
+    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False
+
+    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
+    """
+    if system == 'win32':
+        path = site_data_dir(appname, appauthor)
+        if appname and version:
+            path = os.path.join(path, version)
+    elif system == 'darwin':
+        path = os.path.expanduser('/Library/Preferences')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        # XDG default for $XDG_CONFIG_DIRS
+        # only first, if multipath is False
+        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
+        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
+        if appname:
+            if version:
+                appname = os.path.join(appname, version)
+            pathlist = [os.sep.join([x, appname]) for x in pathlist]
+
+        if multipath:
+            path = os.pathsep.join(pathlist)
+        else:
+            path = pathlist[0]
+    return path
+
+
+def user_cache_dir(appname=None, appauthor=None, version=None, opinion=True):
+    r"""Return full path to the user-specific cache dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "opinion" (boolean) can be False to disable the appending of
+            "Cache" to the base app data dir for Windows. See
+            discussion below.
+
+    Typical user cache directories are:
+        Mac OS X:   ~/Library/Caches/<AppName>
+        Unix:       ~/.cache/<AppName> (XDG default)
+        Win XP:     C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>\Cache
+        Vista:      C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>\Cache
+
+    On Windows the only suggestion in the MSDN docs is that local settings go in
+    the `CSIDL_LOCAL_APPDATA` directory. This is identical to the non-roaming
+    app data dir (the default returned by `user_data_dir` above). Apps typically
+    put cache data somewhere *under* the given dir here. Some examples:
+        ...\Mozilla\Firefox\Profiles\<ProfileName>\Cache
+        ...\Acme\SuperApp\Cache\1.0
+    OPINION: This function appends "Cache" to the `CSIDL_LOCAL_APPDATA` value.
+    This can be disabled with the `opinion=False` option.
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        path = os.path.normpath(_get_win_folder("CSIDL_LOCAL_APPDATA"))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+            if opinion:
+                path = os.path.join(path, "Cache")
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Caches')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_CACHE_HOME', os.path.expanduser('~/.cache'))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_state_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific state dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user state directories are:
+        Mac OS X:  same as user_data_dir
+        Unix:      ~/.local/state/<AppName>   # or in $XDG_STATE_HOME, if defined
+        Win *:     same as user_data_dir
+
+    For Unix, we follow this Debian proposal <https://wiki.debian.org/XDGBaseDirectorySpecification#state>
+    to extend the XDG spec and support $XDG_STATE_HOME.
+
+    That means, by default "~/.local/state/<AppName>".
+    """
+    if system in ["win32", "darwin"]:
+        path = user_data_dir(appname, appauthor, None, roaming)
+    else:
+        path = os.getenv('XDG_STATE_HOME', os.path.expanduser("~/.local/state"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_log_dir(appname=None, appauthor=None, version=None, opinion=True):
+    r"""Return full path to the user-specific log dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "opinion" (boolean) can be False to disable the appending of
+            "Logs" to the base app data dir for Windows, and "log" to the
+            base cache dir for Unix. See discussion below.
+
+    Typical user log directories are:
+        Mac OS X:   ~/Library/Logs/<AppName>
+        Unix:       ~/.cache/<AppName>/log  # or under $XDG_CACHE_HOME if defined
+        Win XP:     C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>\Logs
+        Vista:      C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>\Logs
+
+    On Windows the only suggestion in the MSDN docs is that local settings
+    go in the `CSIDL_LOCAL_APPDATA` directory. (Note: I'm interested in
+    examples of what some windows apps use for a logs dir.)
+
+    OPINION: This function appends "Logs" to the `CSIDL_LOCAL_APPDATA`
+    value for Windows and appends "log" to the user cache dir for Unix.
+    This can be disabled with the `opinion=False` option.
+    """
+    if system == "darwin":
+        path = os.path.join(
+            os.path.expanduser('~/Library/Logs'),
+            appname)
+    elif system == "win32":
+        path = user_data_dir(appname, appauthor, version)
+        version = False
+        if opinion:
+            path = os.path.join(path, "Logs")
+    else:
+        path = user_cache_dir(appname, appauthor, version)
+        version = False
+        if opinion:
+            path = os.path.join(path, "log")
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+class AppDirs(object):
+    """Convenience wrapper for getting application dirs."""
+    def __init__(self, appname=None, appauthor=None, version=None,
+            roaming=False, multipath=False):
+        self.appname = appname
+        self.appauthor = appauthor
+        self.version = version
+        self.roaming = roaming
+        self.multipath = multipath
+
+    @property
+    def user_data_dir(self):
+        return user_data_dir(self.appname, self.appauthor,
+                             version=self.version, roaming=self.roaming)
+
+    @property
+    def site_data_dir(self):
+        return site_data_dir(self.appname, self.appauthor,
+                             version=self.version, multipath=self.multipath)
+
+    @property
+    def user_config_dir(self):
+        return user_config_dir(self.appname, self.appauthor,
+                               version=self.version, roaming=self.roaming)
+
+    @property
+    def site_config_dir(self):
+        return site_config_dir(self.appname, self.appauthor,
+                             version=self.version, multipath=self.multipath)
+
+    @property
+    def user_cache_dir(self):
+        return user_cache_dir(self.appname, self.appauthor,
+                              version=self.version)
+
+    @property
+    def user_state_dir(self):
+        return user_state_dir(self.appname, self.appauthor,
+                              version=self.version)
+
+    @property
+    def user_log_dir(self):
+        return user_log_dir(self.appname, self.appauthor,
+                            version=self.version)
+
+
+#---- internal support stuff
+
+def _get_win_folder_from_registry(csidl_name):
+    """This is a fallback technique at best. I'm not sure if using the
+    registry for this guarantees us the correct answer for all CSIDL_*
+    names.
+    """
+    if PY3:
+      import winreg as _winreg
+    else:
+      import _winreg
+
+    shell_folder_name = {
+        "CSIDL_APPDATA": "AppData",
+        "CSIDL_COMMON_APPDATA": "Common AppData",
+        "CSIDL_LOCAL_APPDATA": "Local AppData",
+    }[csidl_name]
+
+    key = _winreg.OpenKey(
+        _winreg.HKEY_CURRENT_USER,
+        r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders"
+    )
+    dir, type = _winreg.QueryValueEx(key, shell_folder_name)
+    return dir
+
+
+def _get_win_folder_with_ctypes(csidl_name):
+    import ctypes
+
+    csidl_const = {
+        "CSIDL_APPDATA": 26,
+        "CSIDL_COMMON_APPDATA": 35,
+        "CSIDL_LOCAL_APPDATA": 28,
+    }[csidl_name]
+
+    buf = ctypes.create_unicode_buffer(1024)
+    ctypes.windll.shell32.SHGetFolderPathW(None, csidl_const, None, 0, buf)
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in buf:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf2 = ctypes.create_unicode_buffer(1024)
+        if ctypes.windll.kernel32.GetShortPathNameW(buf.value, buf2, 1024):
+            buf = buf2
+
+    return buf.value
+
+def _get_win_folder_with_jna(csidl_name):
+    import array
+    from com.sun import jna
+    from com.sun.jna.platform import win32
+
+    buf_size = win32.WinDef.MAX_PATH * 2
+    buf = array.zeros('c', buf_size)
+    shell = win32.Shell32.INSTANCE
+    shell.SHGetFolderPath(None, getattr(win32.ShlObj, csidl_name), None, win32.ShlObj.SHGFP_TYPE_CURRENT, buf)
+    dir = jna.Native.toString(buf.tostring()).rstrip("\0")
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in dir:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf = array.zeros('c', buf_size)
+        kernel = win32.Kernel32.INSTANCE
+        if kernel.GetShortPathName(dir, buf, buf_size):
+            dir = jna.Native.toString(buf.tostring()).rstrip("\0")
+
+    return dir
+
+def _get_win_folder_from_environ(csidl_name):
+    env_var_name = {
+        "CSIDL_APPDATA": "APPDATA",
+        "CSIDL_COMMON_APPDATA": "ALLUSERSPROFILE",
+        "CSIDL_LOCAL_APPDATA": "LOCALAPPDATA",
+    }[csidl_name]
+
+    return os.environ[env_var_name]
+
+if system == "win32":
+    try:
+        from ctypes import windll
+    except ImportError:
+        try:
+            import com.sun.jna
+        except ImportError:
+            try:
+                if PY3:
+                  import winreg as _winreg
+                else:
+                  import _winreg
+            except ImportError:
+                _get_win_folder = _get_win_folder_from_environ
+            else:
+                _get_win_folder = _get_win_folder_from_registry
+        else:
+            _get_win_folder = _get_win_folder_with_jna
+    else:
+        _get_win_folder = _get_win_folder_with_ctypes
+
+
+#---- self test code
+
+if __name__ == "__main__":
+    appname = "MyApp"
+    appauthor = "MyCompany"
+
+    props = ("user_data_dir",
+             "user_config_dir",
+             "user_cache_dir",
+             "user_state_dir",
+             "user_log_dir",
+             "site_data_dir",
+             "site_config_dir")
+
+    print("-- app dirs %s --" % __version__)
+
+    print("-- app dirs (with optional 'version')")
+    dirs = AppDirs(appname, appauthor, version="1.0")
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (without optional 'version')")
+    dirs = AppDirs(appname, appauthor)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (without optional 'appauthor')")
+    dirs = AppDirs(appname)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (with disabled 'appauthor')")
+    dirs = AppDirs(appname, appauthor=False)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
diff --git a/src/ban_peers/appdirs_LICENSE.txt b/src/ban_peers/appdirs_LICENSE.txt
new file mode 100644
index 0000000..107c614
--- /dev/null
+++ b/src/ban_peers/appdirs_LICENSE.txt
@@ -0,0 +1,23 @@
+# This is the MIT license
+
+Copyright (c) 2010 ActiveState Software Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/src/ban_peers/config.py b/src/ban_peers/config.py
new file mode 100644
index 0000000..a5d5246
--- /dev/null
+++ b/src/ban_peers/config.py
@@ -0,0 +1,63 @@
+"""utils for read/write config file"""
+
+import os
+import re
+import argparse
+from .appdirs import user_config_dir  # type: ignore
+
+
+filename = 'ban_peers'
+_default_config_dir = user_config_dir('BanPeers')
+_default_config_file = os.path.join(_default_config_dir, f'{filename}.conf')
+
+_skip_settings = {'remove_ads', 'config', 'help', 'version'}
+_bool_settings = {'resolve_country', 'no_xunlei_reprieve',
+                  'no_fake_progress_check', 'no_serious_leech_check',
+                  'no_refused_upload_check', 'private_check',
+                  'log_unknown', 'no_close_pairing'}
+_s2b = {
+    '0': False, 'false': False,  'no': False,
+    '1': True,   'true': True,  'yes': True
+}
+
+
+class FileType(argparse.FileType):
+    def __call__(self, string):
+        if 'w' in self._mode and string != '-':
+            dir = os.path.dirname(os.path.abspath(string))
+            if not os.path.exists(dir):
+                os.makedirs(dir, exist_ok=True)
+        return super().__call__(string)
+
+
+def current_dir_config_file():
+    for ext in ['conf', 'ini', 'cfg']:
+        if os.path.exists(f'{filename}.{ext}'):
+            return f'{filename}.{ext}'
+
+
+def save(config, file, log=None):
+    for name, value in config.items():
+        if value and name not in _skip_settings:
+            file.write(f'{name} = {value}\n')
+            if log:
+                log(name, value)
+
+
+def load(config, file, log=None):
+    for l in file.readlines():
+        try:
+            name, value = re.split('\s*=\s*', l.strip(), 1)
+        except ValueError:
+            continue
+        if name in _skip_settings or name not in config or config[name]:
+            continue
+        if name in _bool_settings:
+            value = _s2b[value.lower()]
+        elif value.isdecimal():
+            value = int(value)
+        if not value:
+            continue
+        config[name] = value
+        if log:
+            log(name, value)
diff --git a/src/ban_peers/i18n/locale/README.md b/src/ban_peers/i18n/locale/README.md
index edce9b1..a2d169f 100644
--- a/src/ban_peers/i18n/locale/README.md
+++ b/src/ban_peers/i18n/locale/README.md
@@ -36,8 +36,7 @@ There are few simple guides:
 - Update a existing language po file. Commonly translators need only do the last
   one step.
 
-1. Generates a pot file, does the same (like new languages), then modify the
-   charset to UTF-8.
+1. Generates a pot file, does the same (like new languages).
 
 1. Merge pot file into po file use `msgmerge`.
 
diff --git a/src/ban_peers/i18n/locale/banpeers.pot b/src/ban_peers/i18n/locale/banpeers.pot
index 1381f13..66bce0d 100644
--- a/src/ban_peers/i18n/locale/banpeers.pot
+++ b/src/ban_peers/i18n/locale/banpeers.pot
@@ -6,9 +6,9 @@
 #, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: Ban-Peers 0.9.1\n"
+"Project-Id-Version: Ban-Peers 0.9.2\n"
 "Report-Msgid-Bugs-To: seahoh@gmail.com\n"
-"POT-Creation-Date: 2020-10-08 23:06+0800\n"
+"POT-Creation-Date: 2020-10-11 20:37+0800\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -24,277 +24,326 @@ msgid ""
 "uTorrent.\n"
 msgstr ""
 
-#: ban_peers/__init__.py:452
+#: ban_peers/__init__.py:511
 msgid "Please input uTorrent settings folder path or ipfilter file path:\n"
 msgstr ""
 
-#: ban_peers/__init__.py:459
+#: ban_peers/__init__.py:518
 #, python-format
 msgid "Unable to connect %(host)s:%(port)d"
 msgstr ""
 
-#: ban_peers/__init__.py:570
+#: ban_peers/__init__.py:628
 msgid "Please input WebUI username: "
 msgstr ""
 
-#: ban_peers/__init__.py:571
+#: ban_peers/__init__.py:629
 msgid "Please input WebUI password: "
 msgstr ""
 
-#: ban_peers/__init__.py:637 ban_peers/__init__.py:1160
+#: ban_peers/__init__.py:695 ban_peers/__init__.py:1188
 #, python-format
 msgid "Set uTorrent setting %(name)r to %(value)s"
 msgstr ""
 
-#: ban_peers/__init__.py:654
+#: ban_peers/__init__.py:712
 #, python-format
 msgid "[%(hash)s] set property %(name)r to %(value)s"
 msgstr ""
 
-#: ban_peers/__init__.py:693
+#: ban_peers/__init__.py:748
 #, python-format
 msgid ""
 "Banned %(ip)s:%(port)d@%(country)s: %(reason)s, downloaded: %(dlsize)s, "
 "uploaded: %(ulsize)s"
 msgstr ""
 
-#: ban_peers/__init__.py:706
+#: ban_peers/__init__.py:761
 #, python-format
 msgid "[%(hash)s][%(torrent)s] found %(message)s: [%(client)s]@%(ip&port)s"
 msgstr ""
 
-#: ban_peers/__init__.py:752
+#: ban_peers/__init__.py:797
 #, python-format
 msgid "[%(hash)s][%(torrent)s] increase additional check threshold"
 msgstr ""
 
-#: ban_peers/__init__.py:843
+#: ban_peers/__init__.py:873
 #, python-format
 msgid "report fack progress [%(progress).1f%%]"
 msgstr ""
 
-#: ban_peers/__init__.py:854
+#: ban_peers/__init__.py:884
 msgid "offline download server"
 msgstr ""
 
-#: ban_peers/__init__.py:859
+#: ban_peers/__init__.py:889
 msgid "XunLei"
 msgstr ""
 
-#: ban_peers/__init__.py:874
+#: ban_peers/__init__.py:904
 msgid "player"
 msgstr ""
 
-#: ban_peers/__init__.py:887
+#: ban_peers/__init__.py:917
 msgid "fack client"
 msgstr ""
 
-#: ban_peers/__init__.py:898
+#: ban_peers/__init__.py:928
 msgid "leecher client"
 msgstr ""
 
-#: ban_peers/__init__.py:942
+#: ban_peers/__init__.py:971
 msgid "highly suspected of leecher"
 msgstr ""
 
-#: ban_peers/__init__.py:960
+#: ban_peers/__init__.py:989
 #, python-format
 msgid "refused upload [%(availability).3f]"
 msgstr ""
 
-#: ban_peers/__init__.py:967
+#: ban_peers/__init__.py:996
 msgid "unknown client"
 msgstr ""
 
-#: ban_peers/__init__.py:981
+#: ban_peers/__init__.py:1010
 #, python-format
 msgid ""
 "Statis: %(ipsc)d IPs, %(torrentsuc)d/%(torrentsc)d Torrents, D: %(dlsize)s, "
 "U: %(ulsize)s"
 msgstr ""
 
-#: ban_peers/__init__.py:1003
+#: ban_peers/__init__.py:1032
 #, python-format
 msgid "Auto-banning script %(state)s running"
 msgstr ""
 
-#: ban_peers/__init__.py:1013
+#: ban_peers/__init__.py:1042
 msgid "start"
 msgstr ""
 
-#: ban_peers/__init__.py:1025
+#: ban_peers/__init__.py:1054
 msgid "uTorrent has disconnected"
 msgstr ""
 
-#: ban_peers/__init__.py:1033
+#: ban_peers/__init__.py:1062
 #, python-format
 msgid "Unable to connect WebUI: %(url)s"
 msgstr ""
 
-#: ban_peers/__init__.py:1038
+#: ban_peers/__init__.py:1067
 #, python-format
 msgid "Error occurred: %(error)s, %(url)s"
 msgstr ""
 
-#: ban_peers/__init__.py:1041 ban_peers/__init__.py:1180
+#: ban_peers/__init__.py:1070 ban_peers/__init__.py:1208
 #, python-format
 msgid "%(logheader)s Error occurred: %(error)s"
 msgstr ""
 
-#: ban_peers/__init__.py:1045
+#: ban_peers/__init__.py:1074
 msgid "uTorrent has reconnected"
 msgstr ""
 
-#: ban_peers/__init__.py:1054
+#: ban_peers/__init__.py:1083
 msgid "Choose your operation: (Q)uit, (S)top, (R)estart, (P)ause/Proceed"
 msgstr ""
 
-#: ban_peers/__init__.py:1057
+#: ban_peers/__init__.py:1086
 msgid "DISCONNECTED"
 msgstr ""
 
-#: ban_peers/__init__.py:1064 ban_peers/__init__.py:1069
+#: ban_peers/__init__.py:1093 ban_peers/__init__.py:1098
 msgid "quit"
 msgstr ""
 
-#: ban_peers/__init__.py:1071
+#: ban_peers/__init__.py:1100
 msgid "stop"
 msgstr ""
 
-#: ban_peers/__init__.py:1077
+#: ban_peers/__init__.py:1106
 msgid "restart"
 msgstr ""
 
-#: ban_peers/__init__.py:1082
+#: ban_peers/__init__.py:1111
 msgid "pause"
 msgstr ""
 
-#: ban_peers/__init__.py:1084
+#: ban_peers/__init__.py:1113
 msgid "proceed"
 msgstr ""
 
-#: ban_peers/__init__.py:1124
+#: ban_peers/__init__.py:1153
 msgid "Pairing request has been rejected!"
 msgstr ""
 
-#: ban_peers/__init__.py:1157
+#: ban_peers/__init__.py:1185
 #, python-format
 msgid "set_setting(%(name)r, %(value)s) fail: %(error)s"
 msgstr ""
 
-#: ban_peers/__init__.py:1209
+#: ban_peers/__init__.py:1238
 msgid "IPFILTER-PATH"
 msgstr ""
 
-#: ban_peers/__init__.py:1211
+#: ban_peers/__init__.py:1240
 msgid ""
-"Path of ipfilter dir/file, wait input if empty. IMPORTANT NOTICE: must be "
-"the uTorrent settings path!"
+"Path of ipfilter dir/file, will try load from config file or wait input if "
+"empty. IMPORTANT NOTICE: must be the uTorrent settings path!"
 msgstr ""
 
-#: ban_peers/__init__.py:1214
+#: ban_peers/__init__.py:1244
 msgid "IP|DOMAIN"
 msgstr ""
 
-#: ban_peers/__init__.py:1216
+#: ban_peers/__init__.py:1246
 #, python-format
 msgid "WebUI host, default %(host)s"
 msgstr ""
 
-#: ban_peers/__init__.py:1218
+#: ban_peers/__init__.py:1248
 msgid "PORT"
 msgstr ""
 
-#: ban_peers/__init__.py:1220
+#: ban_peers/__init__.py:1250
 #, python-format
 msgid "WebUI port, default %(port)s"
 msgstr ""
 
-#: ban_peers/__init__.py:1222
+#: ban_peers/__init__.py:1252
 msgid "USERNAME:PASSWORD"
 msgstr ""
 
-#: ban_peers/__init__.py:1224
+#: ban_peers/__init__.py:1254
 msgid "WebUI authorization, wait input if required"
 msgstr ""
 
-#: ban_peers/__init__.py:1226
+#: ban_peers/__init__.py:1256
 msgid "HOURS"
 msgstr ""
 
-#: ban_peers/__init__.py:1228
+#: ban_peers/__init__.py:1258
 #, python-format
 msgid "Ban expire time for peers, default %(time)s hours"
 msgstr ""
 
-#: ban_peers/__init__.py:1231
+#: ban_peers/__init__.py:1261
 msgid "MINUTES"
 msgstr ""
 
-#: ban_peers/__init__.py:1233
+#: ban_peers/__init__.py:1263
 #, python-format
 msgid ""
 "How much time to keep connecting before temporary banned refused upload "
 "peers, at least 5 minutes, default %(time)s minutes"
 msgstr ""
 
-#: ban_peers/__init__.py:1238
+#: ban_peers/__init__.py:1268
 msgid "FORMAT"
 msgstr ""
 
-#: ban_peers/__init__.py:1240
+#: ban_peers/__init__.py:1270
 #, python-format
-msgid "Format of log header, see time.strftime, default %(time)s"
+msgid "Format of log header, see time.strftime, default %(header)s"
 msgstr ""
 
-#: ban_peers/__init__.py:1246
+#: ban_peers/__init__.py:1276
 msgid "Set uTorrent to resolved peer's country code at start-up"
 msgstr ""
 
-#: ban_peers/__init__.py:1251
+#: ban_peers/__init__.py:1281
 msgid "Banned XunLei directly, no more checking"
 msgstr ""
 
-#: ban_peers/__init__.py:1255
+#: ban_peers/__init__.py:1285
 msgid "Don't checking fake progress"
 msgstr ""
 
-#: ban_peers/__init__.py:1259
+#: ban_peers/__init__.py:1289
 msgid "Don't checking serious leech, except anonymous peers"
 msgstr ""
 
-#: ban_peers/__init__.py:1263
+#: ban_peers/__init__.py:1293
 msgid ""
 "Don't checking refused upload, this checking is useful to connect potential "
 "active peers"
 msgstr ""
 
-#: ban_peers/__init__.py:1268
+#: ban_peers/__init__.py:1298
 msgid "Enable checking for private torrents"
 msgstr ""
 
-#: ban_peers/__init__.py:1272
+#: ban_peers/__init__.py:1302
 msgid "Logging unknown clients"
 msgstr ""
 
-#: ban_peers/__init__.py:1276
+#: ban_peers/__init__.py:1306
 msgid ""
 "Remove ads via set Advanced Settings, only working for localhost, and to "
 "fail in older uTorrent"
 msgstr ""
 
-#: ban_peers/__init__.py:1281
+#: ban_peers/__init__.py:1311
 msgid "Don't turn off Web Pairing setting after"
 msgstr ""
 
-#: ban_peers/__init__.py:1285
+#: ban_peers/__init__.py:1316 ban_peers/__init__.py:1326
+msgid "CONFIG-FILE"
+msgstr ""
+
+#: ban_peers/__init__.py:1318
+#, python-format
+msgid ""
+"Save current arguments to a config file except \"--remove-ads\", \"--help\" "
+"and \"--version\". Save to default location \"%(config)s\" if empty input"
+msgstr ""
+
+#: ban_peers/__init__.py:1328
+msgid ""
+"Load arguments from a config file, will not overlaid the inputted arguments. "
+"Load from current directory (use conf/ini/cfg as extension name) or default "
+"location if empty input"
+msgstr ""
+
+#: ban_peers/__init__.py:1335
 msgid "Show this help message and exit"
 msgstr ""
 
-#: ban_peers/__init__.py:1289
+#: ban_peers/__init__.py:1339
 msgid "Show version and exit"
 msgstr ""
 
-#: ban_peers/__init__.py:1295
+#: ban_peers/__init__.py:1345
 msgid "Welcome using"
 msgstr ""
+
+#: ban_peers/__init__.py:1359
+#, python-format
+msgid "%(action)s argument \"%(name)s = %(value)s\""
+msgstr ""
+
+#: ban_peers/__init__.py:1364
+msgid "No ipfilter has be inputted, try load from config file"
+msgstr ""
+
+#: ban_peers/__init__.py:1375
+#, python-format
+msgid "Start saving config file \"%(name)s\""
+msgstr ""
+
+#: ban_peers/__init__.py:1376
+msgid "Save"
+msgstr ""
+
+#: ban_peers/__init__.py:1378
+#, python-format
+msgid "Start loading config file \"%(name)s\""
+msgstr ""
+
+#: ban_peers/__init__.py:1379
+msgid "Load"
+msgstr ""
+
+#: ban_peers/__init__.py:1382
+msgid "Load ipfilter from config file fail, found nothing"
+msgstr ""
diff --git a/src/ban_peers/i18n/locale/zh_CN/LC_MESSAGES/argparse.po b/src/ban_peers/i18n/locale/zh_CN/LC_MESSAGES/argparse.po
index 994254e..89a2df1 100644
--- a/src/ban_peers/i18n/locale/zh_CN/LC_MESSAGES/argparse.po
+++ b/src/ban_peers/i18n/locale/zh_CN/LC_MESSAGES/argparse.po
@@ -29,7 +29,7 @@ msgstr ".__call__() 未定义"
 #: argparse.py:1197
 #, python-format
 msgid "unknown parser %(parser_name)r (choices: %(choices)s)"
-msgstr "未知的分析器 %(parser_name)r (可选: %(choices)s)"
+msgstr "未知的解析器 %(parser_name)r (可选: %(choices)s)"
 
 #: argparse.py:1257
 #, python-format
@@ -98,7 +98,7 @@ msgstr "显示此帮助信息并退出"
 
 #: argparse.py:1768
 msgid "cannot have multiple subparser arguments"
-msgstr "不能包含多个子分析器参数"
+msgstr "不能包含多个子解析器参数"
 
 #: argparse.py:1820 argparse.py:2331
 #, python-format
diff --git a/src/ban_peers/i18n/locale/zh_CN/LC_MESSAGES/banpeers.po b/src/ban_peers/i18n/locale/zh_CN/LC_MESSAGES/banpeers.po
index 90183ad..74ad253 100644
--- a/src/ban_peers/i18n/locale/zh_CN/LC_MESSAGES/banpeers.po
+++ b/src/ban_peers/i18n/locale/zh_CN/LC_MESSAGES/banpeers.po
@@ -8,8 +8,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Ban-Peers 0.9.1\n"
 "Report-Msgid-Bugs-To: seahoh@gmail.com\n"
-"POT-Creation-Date: 2020-10-08 23:06+0800\n"
-"PO-Revision-Date: 2020-10-06 20:03+0800\n"
+"POT-Creation-Date: 2020-10-11 20:37+0800\n"
+"PO-Revision-Date: 2020-10-11 20:38+0800\n"
 "Last-Translator: SeaHOH <seahoh@gmail.com>\n"
 "Language-Team: Chinese (simplified)\n"
 "Language: zh_CN\n"
@@ -25,34 +25,34 @@ msgid ""
 msgstr ""
 "通过网页 API 检查并屏蔽 BitTorrent 吸血对端，移除广告，工作于 uTorrent。"
 
-#: ban_peers/__init__.py:452
+#: ban_peers/__init__.py:511
 msgid "Please input uTorrent settings folder path or ipfilter file path:\n"
 msgstr "请输入 uTorrent 配置文件夹路径，或者 ipfilter 文件路径:\n"
 
-#: ban_peers/__init__.py:459
+#: ban_peers/__init__.py:518
 #, python-format
 msgid "Unable to connect %(host)s:%(port)d"
 msgstr "无法连接 %(host)s:%(port)d"
 
-#: ban_peers/__init__.py:570
+#: ban_peers/__init__.py:628
 msgid "Please input WebUI username: "
 msgstr "请输入 WebUI 用户名: "
 
-#: ban_peers/__init__.py:571
+#: ban_peers/__init__.py:629
 msgid "Please input WebUI password: "
 msgstr "请输入 WebUI 密码: "
 
-#: ban_peers/__init__.py:637 ban_peers/__init__.py:1160
+#: ban_peers/__init__.py:695 ban_peers/__init__.py:1188
 #, python-format
 msgid "Set uTorrent setting %(name)r to %(value)s"
 msgstr "设定 uTorrent 配置 %(name)r 到 %(value)s"
 
-#: ban_peers/__init__.py:654
+#: ban_peers/__init__.py:712
 #, python-format
 msgid "[%(hash)s] set property %(name)r to %(value)s"
 msgstr "[%(hash)s] 设定属性 %(name)r 到 %(value)s"
 
-#: ban_peers/__init__.py:693
+#: ban_peers/__init__.py:748
 #, python-format
 msgid ""
 "Banned %(ip)s:%(port)d@%(country)s: %(reason)s, downloaded: %(dlsize)s, "
@@ -61,55 +61,55 @@ msgstr ""
 "已屏蔽 %(ip)s:%(port)d@%(country)s: %(reason)s, 已下载: %(dlsize)s, 已上传: "
 "%(ulsize)s"
 
-#: ban_peers/__init__.py:706
+#: ban_peers/__init__.py:761
 #, python-format
 msgid "[%(hash)s][%(torrent)s] found %(message)s: [%(client)s]@%(ip&port)s"
 msgstr "[%(hash)s][%(torrent)s] 发现%(message)s: [%(client)s]@%(ip&port)s"
 
-#: ban_peers/__init__.py:752
+#: ban_peers/__init__.py:797
 #, python-format
 msgid "[%(hash)s][%(torrent)s] increase additional check threshold"
 msgstr "[%(hash)s][%(torrent)s] 提高附加检测阀值"
 
-#: ban_peers/__init__.py:843
+#: ban_peers/__init__.py:873
 #, python-format
 msgid "report fack progress [%(progress).1f%%]"
 msgstr "汇报虚假进度 [%(progress).1f%%]"
 
-#: ban_peers/__init__.py:854
+#: ban_peers/__init__.py:884
 msgid "offline download server"
 msgstr "离线下载服务器"
 
-#: ban_peers/__init__.py:859
+#: ban_peers/__init__.py:889
 msgid "XunLei"
 msgstr "迅雷"
 
-#: ban_peers/__init__.py:874
+#: ban_peers/__init__.py:904
 msgid "player"
 msgstr "播放器"
 
-#: ban_peers/__init__.py:887
+#: ban_peers/__init__.py:917
 msgid "fack client"
 msgstr "假冒客户端"
 
-#: ban_peers/__init__.py:898
+#: ban_peers/__init__.py:928
 msgid "leecher client"
 msgstr "吸血客户端"
 
-#: ban_peers/__init__.py:942
+#: ban_peers/__init__.py:971
 msgid "highly suspected of leecher"
 msgstr "高度疑似吸血"
 
-#: ban_peers/__init__.py:960
+#: ban_peers/__init__.py:989
 #, python-format
 msgid "refused upload [%(availability).3f]"
 msgstr "拒绝上传 [%(availability).3f]"
 
-#: ban_peers/__init__.py:967
+#: ban_peers/__init__.py:996
 msgid "unknown client"
 msgstr "未知客户端"
 
-#: ban_peers/__init__.py:981
+#: ban_peers/__init__.py:1010
 #, python-format
 msgid ""
 "Statis: %(ipsc)d IPs, %(torrentsuc)d/%(torrentsc)d Torrents, D: %(dlsize)s, "
@@ -118,127 +118,127 @@ msgstr ""
 "统计: %(ipsc)d IPs, %(torrentsuc)d/%(torrentsc)d Torrents, 已下载: "
 "%(dlsize)s, 已上传: %(ulsize)s"
 
-#: ban_peers/__init__.py:1003
+#: ban_peers/__init__.py:1032
 #, python-format
 msgid "Auto-banning script %(state)s running"
 msgstr "自动屏蔽脚本%(state)s运行"
 
-#: ban_peers/__init__.py:1013
+#: ban_peers/__init__.py:1042
 msgid "start"
 msgstr "开始"
 
-#: ban_peers/__init__.py:1025
+#: ban_peers/__init__.py:1054
 msgid "uTorrent has disconnected"
 msgstr "uTorrent 已断开连接"
 
-#: ban_peers/__init__.py:1033
+#: ban_peers/__init__.py:1062
 #, python-format
 msgid "Unable to connect WebUI: %(url)s"
 msgstr "无法连接 WebUI: %(url)s"
 
-#: ban_peers/__init__.py:1038
+#: ban_peers/__init__.py:1067
 #, python-format
 msgid "Error occurred: %(error)s, %(url)s"
 msgstr "发生错误: %(error)s, %(url)s"
 
-#: ban_peers/__init__.py:1041 ban_peers/__init__.py:1180
+#: ban_peers/__init__.py:1070 ban_peers/__init__.py:1208
 #, python-format
 msgid "%(logheader)s Error occurred: %(error)s"
 msgstr "%(logheader)s 发生错误: %(error)s"
 
-#: ban_peers/__init__.py:1045
+#: ban_peers/__init__.py:1074
 msgid "uTorrent has reconnected"
 msgstr "uTorrent 已重新连接"
 
-#: ban_peers/__init__.py:1054
+#: ban_peers/__init__.py:1083
 msgid "Choose your operation: (Q)uit, (S)top, (R)estart, (P)ause/Proceed"
 msgstr "请选择你要执行的操作: (Q)退出，(S)停止，(R)重新开始，(P)暂停/恢复"
 
-#: ban_peers/__init__.py:1057
+#: ban_peers/__init__.py:1086
 msgid "DISCONNECTED"
 msgstr "已断开连接"
 
-#: ban_peers/__init__.py:1064 ban_peers/__init__.py:1069
+#: ban_peers/__init__.py:1093 ban_peers/__init__.py:1098
 msgid "quit"
 msgstr "退出"
 
-#: ban_peers/__init__.py:1071
+#: ban_peers/__init__.py:1100
 msgid "stop"
 msgstr "停止"
 
-#: ban_peers/__init__.py:1077
+#: ban_peers/__init__.py:1106
 msgid "restart"
 msgstr "重新开始"
 
-#: ban_peers/__init__.py:1082
+#: ban_peers/__init__.py:1111
 msgid "pause"
 msgstr "暂停"
 
-#: ban_peers/__init__.py:1084
+#: ban_peers/__init__.py:1113
 msgid "proceed"
 msgstr "恢复"
 
-#: ban_peers/__init__.py:1124
+#: ban_peers/__init__.py:1153
 msgid "Pairing request has been rejected!"
 msgstr "配对请求已被拒绝!"
 
-#: ban_peers/__init__.py:1157
+#: ban_peers/__init__.py:1185
 #, python-format
 msgid "set_setting(%(name)r, %(value)s) fail: %(error)s"
 msgstr "set_setting(%(name)r, %(value)s) 失败: %(error)s"
 
-#: ban_peers/__init__.py:1209
+#: ban_peers/__init__.py:1238
 msgid "IPFILTER-PATH"
 msgstr "IP屏蔽配置路径"
 
-#: ban_peers/__init__.py:1211
+#: ban_peers/__init__.py:1240
 msgid ""
-"Path of ipfilter dir/file, wait input if empty. IMPORTANT NOTICE: must be "
-"the uTorrent settings path!"
+"Path of ipfilter dir/file, will try load from config file or wait input if "
+"empty. IMPORTANT NOTICE: must be the uTorrent settings path!"
 msgstr ""
-"ipfilter 目录或文件路径，留空将等待输入。重要提示: 必须是 uTorrent 配置使用的"
-"路径!"
+"ipfilter 目录或文件路径，留空将尝试从配置文件加载，或等待输入。重要提示: 必须"
+"是 uTorrent 配置使用的路径!"
 
-#: ban_peers/__init__.py:1214
+#: ban_peers/__init__.py:1244
 msgid "IP|DOMAIN"
 msgstr "IP|域名"
 
-#: ban_peers/__init__.py:1216
+#: ban_peers/__init__.py:1246
 #, python-format
 msgid "WebUI host, default %(host)s"
 msgstr "网页界面的主机，默认 %(host)s"
 
-#: ban_peers/__init__.py:1218
+#: ban_peers/__init__.py:1248
 msgid "PORT"
 msgstr "端口"
 
-#: ban_peers/__init__.py:1220
+#: ban_peers/__init__.py:1250
 #, python-format
 msgid "WebUI port, default %(port)s"
 msgstr "网页界面的端口，默认 %(port)s"
 
-#: ban_peers/__init__.py:1222
+#: ban_peers/__init__.py:1252
 msgid "USERNAME:PASSWORD"
 msgstr "用户名:密码"
 
-#: ban_peers/__init__.py:1224
+#: ban_peers/__init__.py:1254
 msgid "WebUI authorization, wait input if required"
 msgstr "网页界面的授权，如果需要将等待输入"
 
-#: ban_peers/__init__.py:1226
+#: ban_peers/__init__.py:1256
 msgid "HOURS"
 msgstr "小时"
 
-#: ban_peers/__init__.py:1228
+#: ban_peers/__init__.py:1258
 #, python-format
 msgid "Ban expire time for peers, default %(time)s hours"
 msgstr "屏蔽对端的过期时间，默认 %(time)s 小时"
 
-#: ban_peers/__init__.py:1231
+#: ban_peers/__init__.py:1261
 msgid "MINUTES"
 msgstr "分钟"
 
-#: ban_peers/__init__.py:1233
+#: ban_peers/__init__.py:1263
 #, python-format
 msgid ""
 "How much time to keep connecting before temporary banned refused upload "
@@ -246,64 +246,117 @@ msgid ""
 msgstr ""
 "临时屏蔽拒绝上传的对端前保持连接的时间，最少 5 分钟，默认 %(time)s 分钟"
 
-#: ban_peers/__init__.py:1238
+#: ban_peers/__init__.py:1268
 msgid "FORMAT"
 msgstr "格式"
 
-#: ban_peers/__init__.py:1240
+#: ban_peers/__init__.py:1270
 #, python-format
-msgid "Format of log header, see time.strftime, default %(time)s"
-msgstr "日志头格式，参见 time.strftime，默认 %(time)s"
+msgid "Format of log header, see time.strftime, default %(header)s"
+msgstr "日志头格式，参见 time.strftime，默认 %(header)s"
 
-#: ban_peers/__init__.py:1246
+#: ban_peers/__init__.py:1276
 msgid "Set uTorrent to resolved peer's country code at start-up"
 msgstr "启动时，设置 uTorrent 解析对端国家代码"
 
-#: ban_peers/__init__.py:1251
+#: ban_peers/__init__.py:1281
 msgid "Banned XunLei directly, no more checking"
 msgstr "直接屏蔽迅雷，不进行更多的检查"
 
-#: ban_peers/__init__.py:1255
+#: ban_peers/__init__.py:1285
 msgid "Don't checking fake progress"
 msgstr "不进行虚假进度检查"
 
-#: ban_peers/__init__.py:1259
+#: ban_peers/__init__.py:1289
 msgid "Don't checking serious leech, except anonymous peers"
 msgstr "不进行严重吸血检查，匿名对端除外"
 
-#: ban_peers/__init__.py:1263
+#: ban_peers/__init__.py:1293
 msgid ""
 "Don't checking refused upload, this checking is useful to connect potential "
 "active peers"
 msgstr "不进行拒绝上传检查，此检查有助于连接潜在的活跃对端"
 
-#: ban_peers/__init__.py:1268
+#: ban_peers/__init__.py:1298
 msgid "Enable checking for private torrents"
 msgstr "启用对私有种子的检查"
 
-#: ban_peers/__init__.py:1272
+#: ban_peers/__init__.py:1302
 msgid "Logging unknown clients"
 msgstr "将未知客户端记入日志"
 
-#: ban_peers/__init__.py:1276
+#: ban_peers/__init__.py:1306
 msgid ""
 "Remove ads via set Advanced Settings, only working for localhost, and to "
 "fail in older uTorrent"
 msgstr ""
 "通过高级设置移除广告，仅工作于本地主机，也无法工作于较旧版本的 uTorrent"
 
-#: ban_peers/__init__.py:1281
+#: ban_peers/__init__.py:1311
 msgid "Don't turn off Web Pairing setting after"
 msgstr "移除广告后，不关闭网络配对配置项"
 
-#: ban_peers/__init__.py:1285
+#: ban_peers/__init__.py:1316 ban_peers/__init__.py:1326
+msgid "CONFIG-FILE"
+msgstr "配置文件"
+
+#: ban_peers/__init__.py:1318
+#, python-format
+msgid ""
+"Save current arguments to a config file except \"--remove-ads\", \"--help\" "
+"and \"--version\". Save to default location \"%(config)s\" if empty input"
+msgstr ""
+"保存当前参数到一个配置文件，不包括 \"--remove-ads\"、\"--help\" 和 \"--"
+"version\"，如果输入留空则保存到默认位置 \"%(config)s\""
+
+#: ban_peers/__init__.py:1328
+msgid ""
+"Load arguments from a config file, will not overlaid the inputted arguments. "
+"Load from current directory (use conf/ini/cfg as extension name) or default "
+"location if empty input"
+msgstr ""
+"从一个配置文件加载参数，不会覆盖已输入的参数，如果输入留空则尝试从当前目录 "
+"(使用 conf/ini/cfg 作为扩展名) 或默认位置加载"
+
+#: ban_peers/__init__.py:1335
 msgid "Show this help message and exit"
 msgstr "显示此帮助信息并退出"
 
-#: ban_peers/__init__.py:1289
+#: ban_peers/__init__.py:1339
 msgid "Show version and exit"
 msgstr "显示版本信息并退出"
 
-#: ban_peers/__init__.py:1295
+#: ban_peers/__init__.py:1345
 msgid "Welcome using"
 msgstr "欢迎使用"
+
+#: ban_peers/__init__.py:1359
+#, python-format
+msgid "%(action)s argument \"%(name)s = %(value)s\""
+msgstr "%(action)s参数 \"%(name)s = %(value)s\""
+
+#: ban_peers/__init__.py:1364
+msgid "No ipfilter has be inputted, try load from config file"
+msgstr "没有输入 ipfilter，尝试从配置文件加载"
+
+#: ban_peers/__init__.py:1375
+#, python-format
+msgid "Start saving config file \"%(name)s\""
+msgstr "开始保存配置文件 \"%(name)s\""
+
+#: ban_peers/__init__.py:1376
+msgid "Save"
+msgstr "保存"
+
+#: ban_peers/__init__.py:1378
+#, python-format
+msgid "Start loading config file \"%(name)s\""
+msgstr "开始加载配置文件 \"%(name)s\""
+
+#: ban_peers/__init__.py:1379
+msgid "Load"
+msgstr "加载"
+
+#: ban_peers/__init__.py:1382
+msgid "Load ipfilter from config file fail, found nothing"
+msgstr "从配置文件加载 ipfilter 失败，什么都没有找到"
diff --git a/src/ban_peers/i18n/msgfmt.py b/src/ban_peers/i18n/msgfmt.py
index a27458b..ce4f318 100644
--- a/src/ban_peers/i18n/msgfmt.py
+++ b/src/ban_peers/i18n/msgfmt.py
@@ -130,8 +130,8 @@ def __init__(self, msg, fname, lno, content=''):
         self.content = content
 
     def __str__(self):
-        return ('PO file syntax error: {}\\n'
-                '  File "{}", line {}\\n'
+        return ('PO file syntax error: {}\n'
+                '  File "{}", line {}\n'
                 '    {}').format(self.msg, self.fname, self.lno, self.content)
 
 
diff --git a/src/ban_peers/vendor.txt b/src/ban_peers/vendor.txt
index 33c0dc0..ca42ca7 100644
--- a/src/ban_peers/vendor.txt
+++ b/src/ban_peers/vendor.txt
@@ -4,3 +4,8 @@ Files copy from the cpython distribution
     It is not always installed, is used to build mo files when install package.
   i18n/gettext.py (part & modified)
     It enhance origin function for find/read mo files from zip archive.
+
+Files copy from others
+
+  appdirs
+    Use a same version of it, ensure consistency.