hatch test from near-empty project?

[odanoburu]

Hello, I just did hatch new hatch_sandbox, created the following two files, and ran hatch test, but got a ModuleNotFoundError.

src/hatch_sandbox/mymodule.py:

x = 4

tests/test_mymodule.py:

import hatch_sandbox.mymodule as m

def test_x():
    assert m.x == 4

$ hatch test
============================= test session starts ==============================
platform linux -- Python 3.12.4, pytest-8.2.2, pluggy-1.5.0
rootdir: /home/user/sites/hatch-sandbox
configfile: pyproject.toml
plugins: mock-3.14.0, rerunfailures-14.0, xdist-3.6.1
collected 0 items / 1 error                                                    

==================================== ERRORS ====================================
___________________ ERROR collecting tests/test_mymodule.py ____________________
ImportError while importing test module '/home/user/sites/hatch-sandbox/tests/test_mymodule.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib64/python3.12/importlib/__init__.py:90: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
tests/test_mymodule.py:1: in <module>
    import hatch_sandbox.mymodule as m
E   ModuleNotFoundError: No module named 'hatch_sandbox'
=========================== short test summary info ============================
ERROR tests/test_mymodule.py
!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
=============================== 1 error in 0.16s ===============================

I expected this to work out-of-the-box. Did I do something wrong? I also cloned and ran hatch test on the https://github.com/ofek/hatch-showcase/ repository, and it worked, but that repo does include some modifications to the pyproject.toml created by hatch new…

[ofek]

can you please try running hatch run hatch-test.py3.12:python -c "import hatch_sandbox"? then if that doesn't work please create the project again in another directory and run that command, it works for me

[odanoburu]

I get a similar module not found error:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'hatch_sandbox'

I recreated the project in a new directory, this time naming it just 'sandbox', but it gave me the same results :( I'm running hatch 1.12.0, by the way.

[odanoburu]

OK, so I was working on another project that does not use hatch and got another unexpected ModuleNotFoundError, and found the following discussion. Installing setuptools on the virtual environment of both projects seems to solve the issue. I'm not sure what causes the problem, though (a broken installation of pip, or something else?)

---

Update: sorry, the issue is not fixed (in the hatch project). I can import the module from the Python shell, but hatch test still does not work:

> hatch shell
(glf)> python
Python 3.12.4 (main, Jun  7 2024, 00:00:00) [GCC 13.3.1 20240522 (Red Hat 13.3.1-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import glf.walther as w
>>> 
(glf)> hatch run hatch-test.py3.12:python -c "import glf.walther"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'glf'

[ofek]

can you please give me something I can run to reproduce?

[odanoburu]

Sure! I just ran a similar example on a new machine with no previous Python environment (Debian 12). I installed pip and pipx from the Debian repositories (sudo apt-get install python3-pip pipx), then ran pipx install hatch. I then ran the following:

1. hatch new sandbox
2. cd sandbox
3. echo 'def f(): return 4' > src/sandbox/mymodule.py
4. echo -e 'from sandbox.mymodule import f\n\ndef test_x(): assert f() == 4' > tests/test_mymodule.py
5. hatch test

Which gives me a ModuleNotFoundError.

[mstepan]

I have absolutely the same issue running hatch test on a new project. The main problem is that hatch requires src folder to be added to import, like:

from src.your_module import ...