#NEWLINE# def __exit__( self , * ignore_exc ) : #NEWLINE# #INDENT# for ( envvar , value ) in self . _reset . items ( ) : #NEWLINE# #INDENT# self . _environ [ envvar ] = value #NEWLINE# #UNINDENT# for unset in self . _unset : #NEWLINE# #INDENT# del unset . _environ [ unset ]