Merge pull request #10228 from srinivasreddy/patch-1

Remove TemporaryDirectory class

IPython/utils/tempdir.py

@@ -1,144 +1,60 b''
-"""TemporaryDirectory class, copied from Python 3.2.
+""" This module contains classes - NamedFileInTemporaryDirectory, TemporaryWorkingDirectory.
 
-This is copied from the stdlib and will be standard in Python 3.2 and onwards.
+These classes add extra features such as creating a named file in temporary directory and 
+creating a context manager for the working directory which is also temporary.
 """
 
 import os as _os
 import warnings as _warnings
 import sys as _sys
 
-# This code should only be used in Python versions < 3.2, since after that we
-# can rely on the stdlib itself.
-try:
     from tempfile import TemporaryDirectory
 
-except ImportError:
-    from tempfile import mkdtemp, template
-
-    class TemporaryDirectory(object):
-        """Create and return a temporary directory.  This has the same
-        behavior as mkdtemp but can be used as a context manager.  For
-        example:
-
-            with TemporaryDirectory() as tmpdir:
-                ...
-
-        Upon exiting the context, the directory and everthing contained
-        in it are removed.
-        """
-
-        def __init__(self, suffix="", prefix=template, dir=None):
-            self.name = mkdtemp(suffix, prefix, dir)
-            self._closed = False
-
-        def __enter__(self):
-            return self.name
-
-        def cleanup(self, _warn=False):
-            if self.name and not self._closed:
-                try:
-                    self._rmtree(self.name)
-                except (TypeError, AttributeError) as ex:
-                    # Issue #10188: Emit a warning on stderr
-                    # if the directory could not be cleaned
-                    # up due to missing globals
-                    if "None" not in str(ex):
-                        raise
-                    print("ERROR: {!r} while cleaning up {!r}".format(ex, self,),
-                          file=_sys.stderr)
-                    return
-                self._closed = True
-                if _warn:
-                    self._warn("Implicitly cleaning up {!r}".format(self),
-                               Warning)
-
-        def __exit__(self, exc, value, tb):
-            self.cleanup()
-
-        def __del__(self):
-            # Issue a ResourceWarning if implicit cleanup needed
-            self.cleanup(_warn=True)
-
-
-        # XXX (ncoghlan): The following code attempts to make
-        # this class tolerant of the module nulling out process
-        # that happens during CPython interpreter shutdown
-        # Alas, it doesn't actually manage it. See issue #10188
-        _listdir = staticmethod(_os.listdir)
-        _path_join = staticmethod(_os.path.join)
-        _isdir = staticmethod(_os.path.isdir)
-        _remove = staticmethod(_os.remove)
-        _rmdir = staticmethod(_os.rmdir)
-        _os_error = _os.error
-        _warn = _warnings.warn
-
-        def _rmtree(self, path):
-            # Essentially a stripped down version of shutil.rmtree.  We can't
-            # use globals because they may be None'ed out at shutdown.
-            for name in self._listdir(path):
-                fullname = self._path_join(path, name)
-                try:
-                    isdir = self._isdir(fullname)
-                except self._os_error:
-                    isdir = False
-                if isdir:
-                    self._rmtree(fullname)
-                else:
-                    try:
-                        self._remove(fullname)
-                    except self._os_error:
-                        pass
-            try:
-                self._rmdir(path)
-            except self._os_error:
-                pass
-
-
 class NamedFileInTemporaryDirectory(object):
 
     def __init__(self, filename, mode='w+b', bufsize=-1, **kwds):
         """
         Open a file named `filename` in a temporary directory.
 
         This context manager is preferred over `NamedTemporaryFile` in
         stdlib `tempfile` when one needs to reopen the file.
 
         Arguments `mode` and `bufsize` are passed to `open`.
         Rest of the arguments are passed to `TemporaryDirectory`.
 
         """
         self._tmpdir = TemporaryDirectory(**kwds)
         path = _os.path.join(self._tmpdir.name, filename)
         self.file = open(path, mode, bufsize)
 
     def cleanup(self):
         self.file.close()
         self._tmpdir.cleanup()
 
     __del__ = cleanup
 
     def __enter__(self):
         return self.file
 
     def __exit__(self, type, value, traceback):
         self.cleanup()
 
 
 class TemporaryWorkingDirectory(TemporaryDirectory):
     """
     Creates a temporary directory and sets the cwd to that directory.
     Automatically reverts to previous cwd upon cleanup.
     Usage example:
 
         with TemporaryWorkingDirectory() as tmpdir:
             ...
     """
     def __enter__(self):
         self.old_wd = _os.getcwd()
         _os.chdir(self.name)
         return super(TemporaryWorkingDirectory, self).__enter__()
 
     def __exit__(self, exc, value, tb):
         _os.chdir(self.old_wd)
         return super(TemporaryWorkingDirectory, self).__exit__(exc, value, tb)