无法从已安装和导入的模块中导入类

Question

I'm using Python 3.6 on windows, trying to get the py_mstr module installed so I can interact with a MicroStrategy web portal

I downloaded and installed the module by running it's "setup.py" and it appears to have properly installed it to to C:...\\Python36-32\\Lib\\site-packages

I can import the module properly, but when I try to import a class, it returns an error

>>> import py_mstr
>>> from py_mstr import MstrClient
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    from py_mstr import MstrClient
ImportError: cannot import name 'MstrClient'

I checked and py_mstr definitely contains the class "MstrClient"

I dug around and found that folder structure might have something to do with it, but I can't figure it out

Python35-32
    ...
    site-packages
        ...
        py_mstr
            __init__.py
            py_mstr.py
            _pycahce__
                __init__.cpython-36.pyc
                py_mstr.cpython-36.pyc

Answer 1

This package doesn't seem to support Python 3. You might be able to get it to run with 2to3, but if that doesn't work, you might have to run it on Python 2 instead.

The specific Python 3 incompatibility causing your import failure is that py_mstr/__init__.py uses an implicit relative import to bring in the contents of py_mstr/py_mstr.py :

from py_mstr import *

Python 3 interprets this as importing * from the py_mstr package, not the py_mstr.py_mstr submodule. There may be other incompatibilities; I didn't do a thorough inspection.