<s> import os <EOL> from mrjob . job import MRJob <EOL> class MRTestCmdenv ( MRJob ) : <EOL> """<STR_LIT>""" <EOL> def mapper ( self , key , value ) : <EOL> os . environ [ '<STR_LIT>' ] = '<STR_LIT:foo>' <EOL> yield ( '<STR_LIT>' , os . environ [ '<STR_LIT>' ] ) <EOL> yield ( '<STR_LIT>' , os . environ [ '<STR_LIT>' ] ) <EOL> if __name__ == '<STR_LIT:__main__>' : <EOL> MRTestCmdenv . run ( ) </s>
