如何从另一个目录导入python文件

Question

I am working on a django rest framework and can't import .py files from another directory. I have __init__.py files included in the directory:

├── admin.py
├── apps.py
├── heroes
│   ├── __init__.py
│   ├── models.py
│   ├── __pycache__
│   │   └── views.cpython-38.pyc
│   ├── serializers.py
│   └── views.py
├── __init__.py
├── migrations
│   ├── __init__.py
│   └── __pycache__
│       └── __init__.cpython-38.pyc
├── models.py
├── __pycache__
│   ├── admin.cpython-38.pyc
│   ├── apps.cpython-38.pyc
│   ├── __init__.cpython-38.pyc
│   ├── models.cpython-38.pyc
│   └── urls.cpython-38.pyc
├── tests.py
├── urls.py
├── views.py
└── villians
    ├── __init__.py
    ├── models.py
    ├── serializers.py
    └── views.py

I want to import heroes/views.py to base urls.py

Answer 1

please check if you use a proper import statement. In python you define separate subfolders via . , do not use a / .

Just run a test successfully on my system, Python 3.8.6 .

Fs-structure:

./urls.py
./heroes
./heroes/__init__.py
./heroes/views.py

heroes/views.py

#!/usr/bin/python

def say_hello():
  print('Hello from {}'.format(__file__))

urls.py

#!/usr/bin/python

from heroes.views import say_hello
# import everything
# from heroes.views import *

if __name__ == "__main__":
    print('Hello from {}'.format(__file__))
    say_hello()

or if you prefer this method:

import heroes.views as submod

if __name__ == "__main__":
    print('Hello from {}'.format(__file__))
    submod.say_hello()

stdout:

Hello from urls.py
Hello from /somePath/heroes/views.py