| @@ -311,18 +311,20 @@ def _open_code_with_warning(path): |
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open_code = _open_code_with_warning |
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-class DocDescriptor: |
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-"""Helper for builtins.open.__doc__ |
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- """ |
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-def __get__(self, obj, typ=None): |
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-return ( |
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-"open(file, mode='r', buffering=-1, encoding=None, " |
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-"errors=None, newline=None, closefd=True)\n\n" + |
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-open.__doc__) |
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- |
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- |
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-# bpo-43680: Alias to open() kept for backward compatibility |
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-OpenWrapper = open |
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+def __getattr__(name): |
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+if name == "OpenWrapper": |
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+# bpo-43680: Until Python 3.9, _pyio.open was not a static method and |
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+# builtins.open was set to OpenWrapper to not become a bound method |
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+# when set to a class variable. _io.open is a built-in function whereas |
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+# _pyio.open is a Python function. In Python 3.10, _pyio.open() is now |
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+# a static method, and builtins.open() is now io.open(). |
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+import warnings |
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+warnings.warn('OpenWrapper is deprecated, use open instead', |
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+DeprecationWarning, stacklevel=2) |
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+global OpenWrapper |
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+OpenWrapper = open |
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+return OpenWrapper |
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+raise AttributeError(name) |
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# In normal operation, both `UnsupportedOperation`s should be bound to the |