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Add pathlib._abc.PathModuleBase - #113893
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Path modules provide a subset of the `os.path` API, specifically those functions needed to provide `PurePathBase` functionality. Each `PurePathBase` subclass references its path module via a `pathmod` class attribute. This commit adds a new `PathModuleBase` class, which provides abstract methods that unconditionally raise `UnsupportedOperation`. An instance of this class is assigned to `PurePathBase.pathmod`, replacing `posixpath`. As a result, `PurePathBase` is no longer POSIX-y by default, and almost[^1] all its methods raise `UnsupportedOperation` courtesy of `pathmod`. Users who subclass `PurePathBase` or `PathBase` should choose the path syntax by setting `pathmod` to `posixpath`, `ntpath`, `os.path`, or their own subclass of `PathModuleBase`, as circumstances demand. [^1] Except `joinpath()`, `__truediv__()`, `__rtruediv__()`. See pythonGH-113888.
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Path modules provide a subset of the `os.path` API, specifically those functions needed to provide `PurePathBase` functionality. Each `PurePathBase` subclass references its path module via a `pathmod` class attribute. This commit adds a new `PathModuleBase` class, which provides abstract methods that unconditionally raise `UnsupportedOperation`. An instance of this class is assigned to `PurePathBase.pathmod`, replacing `posixpath`. As a result, `PurePathBase` is no longer POSIX-y by default, and all its methods raise `UnsupportedOperation` courtesy of `pathmod`. Users who subclass `PurePathBase` or `PathBase` should choose the path syntax by setting `pathmod` to `posixpath`, `ntpath`, `os.path`, or their own subclass of `PathModuleBase`, as circumstances demand.
aisk
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Path modules provide a subset of the `os.path` API, specifically those functions needed to provide `PurePathBase` functionality. Each `PurePathBase` subclass references its path module via a `pathmod` class attribute. This commit adds a new `PathModuleBase` class, which provides abstract methods that unconditionally raise `UnsupportedOperation`. An instance of this class is assigned to `PurePathBase.pathmod`, replacing `posixpath`. As a result, `PurePathBase` is no longer POSIX-y by default, and all its methods raise `UnsupportedOperation` courtesy of `pathmod`. Users who subclass `PurePathBase` or `PathBase` should choose the path syntax by setting `pathmod` to `posixpath`, `ntpath`, `os.path`, or their own subclass of `PathModuleBase`, as circumstances demand.
Glyphack
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Path modules provide a subset of the `os.path` API, specifically those functions needed to provide `PurePathBase` functionality. Each `PurePathBase` subclass references its path module via a `pathmod` class attribute. This commit adds a new `PathModuleBase` class, which provides abstract methods that unconditionally raise `UnsupportedOperation`. An instance of this class is assigned to `PurePathBase.pathmod`, replacing `posixpath`. As a result, `PurePathBase` is no longer POSIX-y by default, and all its methods raise `UnsupportedOperation` courtesy of `pathmod`. Users who subclass `PurePathBase` or `PathBase` should choose the path syntax by setting `pathmod` to `posixpath`, `ntpath`, `os.path`, or their own subclass of `PathModuleBase`, as circumstances demand.
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Path modules provide a subset of the
os.pathAPI, specifically those functions needed to providePurePathBasefunctionality. EachPurePathBasesubclass references its path module via apathmodclass attribute.This commit adds a new
PathModuleBaseclass, which provides abstract methods that unconditionally raiseUnsupportedOperation. An instance of this class is assigned toPurePathBase.pathmod, replacingposixpath. As a result,PurePathBaseis no longer POSIX-y by default, and all its methods raiseUnsupportedOperationcourtesy ofpathmod.Users who subclass
PurePathBaseorPathBaseshould choose the path syntax by settingpathmodtoposixpath,ntpath,os.path, or their own subclass ofPathModuleBase, as circumstances demand.If/when we make the ABCs public, we may wish to rename this class and the
pathmodattribute to something less misleading, like "flavour".Downstream issue:
PurePathBasesyntax customisation barneygale/pathlib-abc#7