如何将 python 模块中的所有文件放置到同一个顶级命名空间？

Question

I have example python project with multiple files:

src/common.py:

def toint(x):
    return int(x)

src/foo1.py:

import common

def add(a,b):
    return common.toint(a) + common.toint(b)

src/foo2.py:

import common

def sub(a,b):
    return common.toint(a)-common.toint(b)

setup.py:

from setuptools import setup

setup (name = 'test_py_project',
       version = '1.0',
       author='Vladislav Tsendrovskii',
       description = 'test python modules',
       package_dir = {'': 'src'}
       )

Now I want to install this project. I run python3 setup.py install --user and it installs.

But it installs not in a way that I want.

When I try to use it, I have problems.

I can not do import test_py_project.foo1

But I can do import foo1

How should I modify my project, to place all stuff inside test_py_project namespace?

I have tried to google for solution. But I've failed(

Answer 1

Reference the python docs https://docs.python.org/2/tutorial/modules.html#intra-package-references for creating modules and project directory format. Eg Modulename/ModuleFiles.py and existence of a __init__.py and __main__.py files. From __init__ you can import * or use relative/absolute imports.

Answer 2

But I can do import foo1

As it seems, your Python can already find stuff inside the src folder.

If you want to make test_py_project.foo1 work, create the necessary directory under src and move foo1.py there, so that you'll have src/test_py_project/foo1.py .

Then the import import test_py_project.foo1 should work.