diff options
Diffstat (limited to 'third_party/python/PyYAML/lib/_yaml/__init__.py')
-rw-r--r-- | third_party/python/PyYAML/lib/_yaml/__init__.py | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/third_party/python/PyYAML/lib/_yaml/__init__.py b/third_party/python/PyYAML/lib/_yaml/__init__.py new file mode 100644 index 0000000000..7baa8c4b68 --- /dev/null +++ b/third_party/python/PyYAML/lib/_yaml/__init__.py @@ -0,0 +1,33 @@ +# This is a stub package designed to roughly emulate the _yaml +# extension module, which previously existed as a standalone module +# and has been moved into the `yaml` package namespace. +# It does not perfectly mimic its old counterpart, but should get +# close enough for anyone who's relying on it even when they shouldn't. +import yaml + +# in some circumstances, the yaml module we imoprted may be from a different version, so we need +# to tread carefully when poking at it here (it may not have the attributes we expect) +if not getattr(yaml, '__with_libyaml__', False): + from sys import version_info + + exc = ModuleNotFoundError if version_info >= (3, 6) else ImportError + raise exc("No module named '_yaml'") +else: + from yaml._yaml import * + import warnings + warnings.warn( + 'The _yaml extension module is now located at yaml._yaml' + ' and its location is subject to change. To use the' + ' LibYAML-based parser and emitter, import from `yaml`:' + ' `from yaml import CLoader as Loader, CDumper as Dumper`.', + DeprecationWarning + ) + del warnings + # Don't `del yaml` here because yaml is actually an existing + # namespace member of _yaml. + +__name__ = '_yaml' +# If the module is top-level (i.e. not a part of any specific package) +# then the attribute should be set to ''. +# https://docs.python.org/3.8/library/types.html +__package__ = '' |