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73 lines
2.2 KiB
73 lines
2.2 KiB
"""
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https://github.com/pjdelport/backports.tempfile/blob/master/src/backports/tempfile.py
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Partial backport of Python 3.5's tempfile module:
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TemporaryDirectory
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Backport modifications are marked with marked with "XXX backport".
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"""
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from __future__ import absolute_import
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import sys
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import warnings as _warnings
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from shutil import rmtree as _rmtree
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from py2backports.weakref import finalize
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# XXX backport: Rather than backporting all of mkdtemp(), we just create a
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# thin wrapper implementing its Python 3.5 signature.
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if sys.version_info < (3, 5):
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from tempfile import mkdtemp as old_mkdtemp
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def mkdtemp(suffix=None, prefix=None, dir=None):
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"""
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Wrap `tempfile.mkdtemp()` to make the suffix and prefix optional (like Python 3.5).
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"""
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kwargs = {k: v for (k, v) in
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dict(suffix=suffix, prefix=prefix, dir=dir).items()
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if v is not None}
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return old_mkdtemp(**kwargs)
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else:
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from tempfile import mkdtemp
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# XXX backport: ResourceWarning was added in Python 3.2.
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# For earlier versions, fall back to RuntimeWarning instead.
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_ResourceWarning = RuntimeWarning if sys.version_info < (3, 2) else ResourceWarning
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class TemporaryDirectory(object):
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"""Create and return a temporary directory. This has the same
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behavior as mkdtemp but can be used as a context manager. For
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example:
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with TemporaryDirectory() as tmpdir:
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...
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Upon exiting the context, the directory and everything contained
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in it are removed.
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"""
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def __init__(self, suffix=None, prefix=None, dir=None):
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self.name = mkdtemp(suffix, prefix, dir)
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self._finalizer = finalize(
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self, self._cleanup, self.name,
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warn_message="Implicitly cleaning up {!r}".format(self))
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@classmethod
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def _cleanup(cls, name, warn_message):
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_rmtree(name)
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_warnings.warn(warn_message, _ResourceWarning)
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def __repr__(self):
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return "<{} {!r}>".format(self.__class__.__name__, self.name)
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def __enter__(self):
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return self.name
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def __exit__(self, exc, value, tb):
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self.cleanup()
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def cleanup(self):
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if self._finalizer.detach():
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_rmtree(self.name)
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