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Lines Matching refs:_environ

996         self._environ = os.environ
1000 return self._environ[envvar]
1005 self._changed[envvar] = self._environ.get(envvar)
1006 self._environ[envvar] = value
1011 self._changed[envvar] = self._environ.get(envvar)
1012 if envvar in self._environ:
1013 del self._environ[envvar]
1016 return self._environ.keys()
1030 if k in self._environ:
1031 del self._environ[k]
1033 self._environ[k] = v
1034 os.environ = self._environ