ImportError with from . import x on simple python files

Question

I wanted to port some code from python 2 to python 3 and it failed on an import error. So I tried to get rid of the porting itself and focus on the import by creating 2 basic python files to test with. However I can't even get those to work.

So I have 2 files

test.py:

print('Test works')

and test2.py:

from . import test

The result however is this error in Pycharm:

ImportError: cannot import name 'test' from '__main__' (C:/Users/Username/test2.py)

In Ubuntu Shell:

Traceback (most recent call last): File "test2.py", line 1, in from . import test1 SystemError: Parent module '' not loaded, cannot perform relative import

How can I solve it?

Answer 1

This "folder structure matters" is a large problem in python3. Your folder structure should NOT matter when coding, but should be referenced properly.

I've just resorted to using if/else depending on if ran locally or as part of a module:

if __name__ == "__main__": # Local Run
    import test
else: # Module Run, When going production - delete if/else
    from . import test

Answer 2

I had the same problem, and ended up removing the "from . " that was added from the 2to3 conversion script.