>i.dZddlmZdZddZdZdZy) z Common validation functions ) basestringcDt|tst|d|y)z= 0, but got {}N)intformat ValueError)namererrmsgs r zero_or_greaterr6s1 5zA~.55dEB  r Nr)__doc__ pika.compatrr rrrr r rs$#    L( !r