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"""A few useful context managers
:copyright: 2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
__docformat__ = "restructuredtext en"
import sys
if sys.version_info < (2, 5):
raise ImportError("python >= 2.5 is required to import logilab.common.contexts")
import os
import tempfile
import shutil
class tempdir(object):
def __enter__(self):
self.path = tempfile.mkdtemp()
return self.path
def __exit__(self, exctype, value, traceback):
# rmtree in all cases
shutil.rmtree(self.path)
return traceback is None
class pushd(object):
def __init__(self, directory):
self.directory = directory
def __enter__(self):
self.cwd = os.getcwd()
os.chdir(self.directory)
return self.directory
def __exit__(self, exctype, value, traceback):
os.chdir(self.cwd)
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