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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def setenv(item, timefmt):
    '''Set environment, based on item.  Usually done in a baby fork'''
    for env, att in (( 'FSQ_ITEM_PID', 'pid', ),
                     ( 'FSQ_ITEM_ENTROPY', 'entropy', ),
                     ( 'FSQ_ITEM_HOSTNAME', 'hostname', ),
                     ( 'FSQ_ITEM_HOST', 'host', ),
                     ( 'FSQ_ITEM_ID', 'id', ), ):
        try:
            os.putenv(env, getattr(item,
                      att).encode(_CHARSET))
        except UnicodeEncodeError:
            shout('cannot coerce item {0};'
                  ' charset={1}'.format(att, _CHARSET))
            return -1
        except AttributeError:
            if att != 'host':
                raise

    # format tries and date to env
    os.putenv('FSQ_ITEM_TRIES', str(item.tries))
    try:
        os.putenv('FSQ_ITEM_ENQUEUED_AT',
                  item.enqueued_at.strftime(timefmt))
    except ValueError:
        shout('invalid timefmt: {0}'.format(timefmt))
        return -1
    return 0