I agree with Ben. In this particular case, it seems you really should be using "==" unless obj_0, obj_1, and obj_2 are sentinels.
Skip -- https://mail.python.org/mailman/listinfo/python-list
- when to use == and when to use is George Trojan
- Re: when to use == and when to use is Ned Batchelder
- Re: when to use == and when to use is Ben Finney
- Re: when to use == and when to use is Skip Montanaro
