[issue32797] Tracebacks from Cython modules no longer work

[Jeroen Demeyer]

Jeroen Demeyer <J.Demeyer at UGent.be> added the comment:

> So, where is the filename coming from?

Python 3.7.0 (default, Jul 23 2018, 10:07:21)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from sage.all import Integer
>>> try:
...     Integer(1)/Integer(0)
... except Exception as e:
...     E = e
>>> E.__traceback__.tb_next.tb_frame.f_code.co_filename
'sage/structure/element.pyx'

So this is the correct filename, relative to site-packages.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32797>
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