[issue11468] Improve unittest basic example in the doc

[Raymond Hettinger]

Raymond Hettinger added the comment:

FWIW, I'm going to test some other module (math or somesuch) rather than the built-in string methods.  The normal use of unittest is to import both the unittest module and the module under test.  I want to show that pattern (which is somewhat different from doctests where the tests are typically in the same file as the code being tested).

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue11468>
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