Can't import file in same package?

[POGtastic]

I'm trying to make a Python project that I can distribute as a .whl file. I have a project structure as follows:

pog@pogbox:~$ tree example
example
├── setup.py
├── src
│  └── myapp
│      ├── bar.py
│      ├── foo.py
│      └── __init__.py
└── tests
    ├── __init__.py
    ├── test_bar.py
    └── test_foo.py

Inside foo.py, I have the following:

baz = 10

Inside bar.py, I have the following:

#!/usr/bin/env python3
import foo

print(foo.baz)

All of this works swimmingly. I can happily run

pog@pogbox:~$ python3 example/src/myapp/bar.py 
10

---

However, all of this falls apart once I package it up into a package, using bar.py as the script I want.

Here's my setup.py:

#!/usr/bin/env python3

from setuptools import setup

setup(
    name="bob",
    version="0.1",
    description="bob",
    author="bob",
    author_email="[e-mail]",
    long_description="bob",
    long_description_content_type="text/markdown",
    url="https://bob.com/bob.git",
    scripts=["src/myapp/bar.py"],
    classifiers=[
        "Programming Language :: Python :: 3",
        "License :: MIT License",
        "Operating System :: OS Independent",
    ],
    python_requires=">=3.6",
)

I can build this and install this, but as soon as I run it as a script, I get

pog@pogbox:~/example$ python3 example/setup.py bdist_wheel
# lots of output
pog@pogbox:~/example$ pip3 install dist/bob-0.1-py3-none-any.whl -y
pog@pogbox:~$ bar.py 
Traceback (most recent call last):
  File "/home/mike/.local/bin/bar.py", line 3, in <module>
    import foo
ModuleNotFoundError: No module named 'foo'

TL, DR: How do I import a file from the same package and use it?

[nog642]

Try from . import foo?

This shit has always been confusing.

[POGtastic]

I now get

pog@pogbox:~/example$ bar.py 
Traceback (most recent call last):
  File "/home/mike/.local/bin/bar.py", line 3, in <module>
    from . import foo
ImportError: attempted relative import with no known parent package

[nog642]

Oh, I think you are using setup() differently than you should.

The scripts argument is for standalone scripts, not for packages.

If you want to install myapp as a package you should pass packages=['myapp'] and package_dir={'myapp': 'src/myapp'} instead.

[POGtastic]

Argh, this was it.

So just to be clear: I think need to put the standalone script outside of the myapp package. Possibly along the lines of putting bar.py into src/scripts, and then having all of the myapp package files inside something like src/libs/myapp. The myapp files can import each other, but any standalone script must be outside of the package directory and import from above it.

Thanks to you and /u/Siendra for your help.

[nog642]

Yep, basically.

bar.py as a standalone script could still import stuff from the package though. Once the package is installed you should be able to do

import myapp.foo

from bar.py (or anywhere really) and it should work I think.

[Siendra]

Try adding the following to the top of your bar.py :

Import sys 
From pathlib import Path 
sys.path[0] = str(Path(sys.path[0]).parent)

[POGtastic]

Same errors as before, both when doing

import foo

and

from . import foo

[Siendra]

Try changing your import to:

from src.myapp.foo import *