This installer is almost outdated.

[ytsuboi]

I installed v0.4.10, and tried to update mbed-cli to latest by running pip install -U mbed-cli.

I had a bad feeling when installing v0.4.10 because it installer Python 2.7, and as a result pip install -U mbed-cli couldn't finish successfully.

Successfully installed PrettyTable-0.7.2 appdirs-1.4.4 backports.functools-lru-cache-1.6.1 beautifulsoup4-4.9.1 certifi-2020.6.20 chardet-3.0.4 colorama-0.4.3 fasteners-0.15 future-0.18.2 idna-2.10 intelhex-2.2.1 junit-xml-1.9 lockfile-0.12.2 mbed-cli-1.10.4 mbed-os-tools-0.0.14 monotonic-1.5 pyserial-3.4 requests-2.24.0 six-1.15.0 soupsieve-1.9.6 urllib3-1.25.9
Traceback (most recent call last):
  File "c:\python27\lib\runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "c:\python27\lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "C:\Python27\Scripts\pip.exe\__main__.py", line 9, in <module>
  File "c:\python27\lib\site-packages\pip\__init__.py", line 233, in main
    return command.main(cmd_args)
  File "c:\python27\lib\site-packages\pip\basecommand.py", line 252, in main
    pip_version_check(session)
  File "c:\python27\lib\site-packages\pip\utils\outdated.py", line 102, in pip_version_check
    installed_version = get_installed_version("pip")
  File "c:\python27\lib\site-packages\pip\utils\__init__.py", line 838, in get_installed_version
    working_set = pkg_resources.WorkingSet()
  File "c:\python27\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 644, in __init__
    self.add_entry(entry)
  File "c:\python27\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 700, in add_entry
    for dist in find_distributions(entry, True):
  File "c:\python27\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1949, in find_eggs_in_zip
    if metadata.has_metadata('PKG-INFO'):
  File "c:\python27\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1463, in has_metadata
    return self.egg_info and self._has(self._fn(self.egg_info, name))
  File "c:\python27\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1823, in _has
    return zip_path in self.zipinfo or zip_path in self._index()
  File "c:\python27\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1703, in zipinfo
    return self._zip_manifests.load(self.loader.archive)
  File "c:\python27\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1643, in load
    mtime = os.stat(path).st_mtime
WindowsError: [Error 2] 指定されたファイルが見つかりません。: 'c:\\python27\\lib\\site-packages\\mbed_cli-1.8.3-py2.7.egg'