I try to usually use several versions to know the difference. You never know when a package might come along, and you want to try it out, and then version becomes compatibility.
Alternatively, a client might come along and insist that a particular version be used. Do a little quick research on the differences, and try them out. You might want to know a few things like from __future__ import x for the 2's or print 'this' become print('this') in later ones, etc. -- Best Regards, David Hutto *CEO:* *http://www.hitwebdevelopment.com*
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