Fix Python – Is it pythonic to import inside functions?

PEP 8 says:

Imports are always put at the top of the file, just after any module
comments and docstrings, and before module globals and constants.

On occation, I violate PEP 8. Some times I import stuff inside functions. As a general rule, I do this if there is an import that is only used within a single function.
Any opinions?
EDIT (the rea….

Fix Python – Python __str__ versus __unicode__

Is there a python convention for when you should implement __str__() versus __unicode__(). I’ve seen classes override __unicode__() more frequently than __str__() but it doesn’t appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it necessary/good practice to implement both?
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