Call PyErr_NormalizeException for exceptions by slide · Pull Request #1265

Call PyErr_NormalizeException for exceptions by slide · Pull Request #1265 · pythonnet/pythonnet

I ran the same code on C Python 3.7.7 interpreter and got this, so the behavior matches:

Python 3.7.7 (tags/v3.7.7:d7c567b08f, Mar 10 2020, 10:41:24) [MSC v.1900 64 bit (AMD64)] on win32
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>>> class TestException(NameError):
...     def __init__(self, val):
...             super().__init__(val)
...             x = int(val)
...
>>> raise TestException('foo')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 4, in __init__
ValueError: invalid literal for int() with base 10: 'foo'