Python3 找不到 pip3 安装的模块，即使它安装了 defintley

Question

I have a folder structure

root
|-setup.py
|-src
| |-BDDexample
|   |-ExampleSystem.py (contains a class called ExampleSystem)
|   |-__init__.py (empty file)
|
|-tests
  |-cucumber
    |-features
      |-steps
        |-EnableSystemStepImpl.py

My setup.py file is:

#!/usr/local/bin/python3.6
from setuptools import setup, find_packages

setup(
    name="BDDexample",
    version="0.2",
    packages=find_packages()
)

I then installed this using pip3 install . . I also tried python3 setup.py bdist_wheel followed by pip3 install dist/BDDexample-0.2-py3-none-any.whl .

It finds the module BDDexample, and I can test this by typing pip3 list , which shows the module.

However, in EnableSystemStepImpl.py I have the line:

from BDDexample.ExampleSystem import ExampleSystem

And I get the error:

ModuleNotFoundError: No module named 'BDDexample'

When I try to run this file.

Why is this happening! It is installed, so why can it not find it. I know there are loads of python import questions but it seems like I am doing everything right.

Answer 1

The file BDDexample.ExampleSystem is not getting extracted from ExampleSystem because it might not be in a direct accessible path for the pc to extract. Please check if it is in your c drive etc...

Answer 2

I've found the answer, it's because I shouldn't have had the src folder. I've changed my directory structure to:

root
|-setup.py
|-BDDexample
| |-ExampleSystem.py (contains a class called ExampleSystem)
| |-__init__.py (empty file)
|
|-tests
  |-cucumber
    |-features
      |-steps
        |-EnableSystemStepImpl.py

And it now works.

I assume find_packages couldn't find the BDDexample module because it was inside another folder.