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