mv-python

OK unittests should be fixed now (verified on my local computer). I have fixed them by mocking out `os.path.exists`. I was not sure whether mocking is preffered way how to...

Tests are failing due this typo in tests (`scr2` instead of `src2`): https://github.com/cython/cython/blob/366f49a0f07709687410231b7cdd4a2b82aa91c8/tests/build/cythonize_cython.srctree#L30 @scoder should I fix it in this PR or the fix will go elsewhere?

> the problem with cython is just that the error is not being printed completely at the end of Main.py. Should I create separate PR for this?

> but the problem with cython is just that the error is not being printed completely at the end of Main.py. This is fixed in latest commit

> the specific IO exceptions line FileNotFoundError were only added in CPython 3.4 Oh I missed that :-/. I am starting to forget what is not already supported in python...

Not sure why 2.7 tests are failing. On my local computer the test is passing even on python 2.7: ---------------------------------------------------------------------- Ran 1 test in 0.964s OK Most expensive pipeline stages:...

OK fixed issue with 2.7 unittests, missing mock module, but still 2.7 failing not sure why - I am not able to replicate it.

Let's try once again.

@da-woods do you know what can go wrong? The CI is failing due following error: ``` ====================================================================== ERROR: test_cython_verbose (Cython.Build.Tests.TestIpythonMagic.TestIPythonMagic) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/runner/work/cython/cython/Cython/Build/Tests/TestIpythonMagic.py", line 244,...

Based on comment https://github.com/cython/cython/issues/4022#issuecomment-1200386975 can be this PR merged before beta of 3.0.0? (link back to https://github.com/cython/cython/issues/4022)