The yaml.load{,_all} functions require Loader= now

lib/yaml/__init__.py

@@ -18,41 +18,12 @@
 import io
 
 #------------------------------------------------------------------------------
-# Warnings control
+# XXX "Warnings control" is now deprecated. Leaving in the API function to not
+# break code that uses it.
 #------------------------------------------------------------------------------
-
-# 'Global' warnings state:
-_warnings_enabled = {
-    'YAMLLoadWarning': True,
-}
-
-# Get or set global warnings' state
 def warnings(settings=None):
     if settings is None:
-        return _warnings_enabled
-
-    if type(settings) is dict:
-        for key in settings:
-            if key in _warnings_enabled:
-                _warnings_enabled[key] = settings[key]
-
-# Warn when load() is called without Loader=...
-class YAMLLoadWarning(RuntimeWarning):
-    pass
-
-def load_warning(method):
-    if _warnings_enabled['YAMLLoadWarning'] is False:
-        return
-
-    import warnings
-
-    message = (
-        "calling yaml.%s() without Loader=... is deprecated, as the "
-        "default Loader is unsafe. Please read "
-        "https://msg.pyyaml.org/load for full details."
-    ) % method
-
-    warnings.warn(message, YAMLLoadWarning, stacklevel=3)
+        return {}
 
 #------------------------------------------------------------------------------
 def scan(stream, Loader=Loader):
@@ -100,30 +71,22 @@ def compose_all(stream, Loader=Loader):
     finally:
         loader.dispose()
 
-def load(stream, Loader=None):
+def load(stream, Loader):
     """
     Parse the first YAML document in a stream
     and produce the corresponding Python object.
     """
-    if Loader is None:
-        load_warning('load')
-        Loader = FullLoader
-
     loader = Loader(stream)
     try:
         return loader.get_single_data()
     finally:
         loader.dispose()
 
-def load_all(stream, Loader=None):
+def load_all(stream, Loader):
     """
     Parse all YAML documents in a stream
     and produce corresponding Python objects.
     """
-    if Loader is None:
-        load_warning('load_all')
-        Loader = FullLoader
-
     loader = Loader(stream)
     try:
         while loader.check_data():

tests/lib/test_dump_load.py

@@ -4,10 +4,6 @@ def test_dump(verbose=False):
     assert yaml.dump(['foo'])
 test_dump.unittest = True
 
-def test_load(verbose=False):
-    assert yaml.load("- foo\n")
-test_load.unittest = True
-
 def test_load_safeloader(verbose=False):
     assert yaml.load("- foo\n", Loader=yaml.SafeLoader)
 test_load_safeloader.unittest = True