Merged revisions 72167 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r72167 | walter.doerwald | 2009-05-01 19:35:37 +0200 (Fr, 01 Mai 2009) | 5 lines

  Make test.test_support.EnvironmentVarGuard behave like a dictionary.

  All changes are mirrored to the underlying os.environ dict, but rolled back
  on exit from the with block.
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This commit is contained in:
Walter Dörwald 2009-05-01 19:58:58 +00:00
parent 33841c3489
commit 155374d95d
10 changed files with 79 additions and 68 deletions

View file

@ -384,8 +384,13 @@ The :mod:`test.support` module defines the following classes:
.. class:: EnvironmentVarGuard()
Class used to temporarily set or unset environment variables. Instances can be
used as a context manager.
used as a context manager and have a complete dictionary interface for
querying/modifying the underlying ``os.environ``. After exit from the context
manager all changes to environment variables done through this instance will
be rolled back.
.. versionchanged:: 2.7
Added dictionary interface.
.. method:: EnvironmentVarGuard.set(envvar, value)
@ -396,6 +401,7 @@ The :mod:`test.support` module defines the following classes:
Temporarily unset the environment variable ``envvar``.
.. class:: WarningsRecorder()
Class used to record warnings for unit tests. See documentation of