Python 3 compat: __import__ no longer accepts level=-1

[jorisvandenbossche]

__import__ in python 3 has a default of level=0, and -1 is no longer accepted (https://docs.python.org/3/library/functions.html#__import__)

So using this with python 3, you get

>>> import import_profiler
>>> from import_profiler import profile_import
>>> with profile_import() as context:
...     import pandas
... 
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
  File "/home/joris/miniconda3/envs/dev/lib/python3.5/site-packages/import_profiler.py", line 149, in _profiled_import
    return self._original_importer(name, globals, locals, fromlist, level, *a, **kw)
  File "/home/joris/scipy/pandas/pandas/__init__.py", line 13, in <module>
    __import__(dependency)
  File "/home/joris/miniconda3/envs/dev/lib/python3.5/site-packages/import_profiler.py", line 149, in _profiled_import
    return self._original_importer(name, globals, locals, fromlist, level, *a, **kw)
ValueError: level must be >= 0

Not sure if just changing level to 0 in https://github.com/cournape/import-profiler/blob/master/import_profiler.py#L139 is the correct solution, but at least it seems to work locally by making that small patch.

[cournape]

Indeed, I have not looked into making this work on python 3. As python 3 does only absolute import, level should default to 0 indeed. Care to make a patch ?

[nicoulaj]

@cournape I sent you a patch in #7, I have seen no issue with it so far

[RafalSkolasinski]

2019 here. Problem still exists with pip installed version.