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Tue Aug 3 17:05:08 CEST 2010 · https://mail.python.org/pipermail/python-dev/2010-August/102765.html

On Tue, Aug 3, 2010 at 10:14 AM, Guido van Rossum <guido at python.org> wrote:

> What are the use cases for co_firstlineno? Even if it is for
> displaying the source code, I can find virtue for both sides of this
> argument.

nose uses co_firstlineno to determine order of the test functions and
decorating a test function can change such order. To keep the
ordering, it provides nose.tools.make_decorator() which explicitly
keeps the line number of the original function. Check the following
thread for a discussion in this regard:

http://groups.google.com/group/nose-users/browse_thread/thread/3e354cbb5b1fac6/107429c5abbf2e59

Thanks,
Raghu

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[Python-Dev] co_firstlineno on decorated functions