从另一个包导入类

Question

I have the following directory structure:

F:.
│   .gitignore
│
└───Tests
    │   main.py
    │   __init__.py
    │
    ├───compare
    │   │   __init__.py
    │   │
    │   └───process
    │           process.py
    │           __init__.py
    │
    ├───lookup
    │       User.py
    │       __init__.py
    │
    ├───requestor
    │       Requestor.py
    │       __init__.py
    │
    ├───search
    │       UserSearch.py
    │       ProductSearch.py
    │       __init__.py
    │
    └───utils
            constants.py
            __init__.py

I am able to import any file/class from main.py like

from search.UsersSearch import UsersSearchPayLoad
from search.ProductSearch import ProductSearchPayLoad
from utils.constants import *

but I cannot do any import from any other package like, from search.UserSearch :

from ..utils.constants import *
from Tests.utils.constants import * 

I was referring this for understanding the correct way to use relative imports.

I am using Python 2.7.11

Answer 1

Try adding:

import os
import sys

sys.path.append(os.path.realpath(os.getcwd()))

In: Tests/__init__.py

Answer 2

For the latest phython Version eg 3.7.0

from directory import class-name

A directory is your folder structure. It could be subDirectory\\directory