simple example does not seem to work

I cannot get the simplest example to work. It is probably me not understanding what to import.

I get E ModuleNotFoundError: No module named 'pytestqt'.

Here’s the steps I did:

1. created a python virtual environment: python3 -m venv venv
2. activated the environment: source venv/bin/activate
3. pip install PySide6 pytest pytest-qt
4. created a test_hello.py (copied from doc)

from pytestqt import qtbot

def test_hello(qtbot):
    widget = HelloWidget()
    qtbot.addWidget(widget)

    # click in the Greet button and make sure it updates the appropriate label
    qtbot.mouseClick(widget.button_greet, qt_api.QtCore.Qt.MouseButton.LeftButton)

    assert widget.greet_label.text() == "Hello!"

1. Run pytest: pytest

I expect a green pytest 1/1 success.

Instead I get this error:

% pytest
================================================================ test session starts =================================================================
platform darwin -- Python 3.9.9, pytest-6.2.5, py-1.11.0, pluggy-1.0.0
rootdir: /nix/code/pytest-qt-example
plugins: cov-3.0.0
collected 0 items / 1 error

======================================================================= ERRORS =======================================================================
___________________________________________________________ ERROR collecting test_hello.py ___________________________________________________________
ImportError while importing test module '/nix/code/pytest-qt-example/test_hello.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/local/Cellar/python@3.9/3.9.9/Frameworks/Python.framework/Versions/3.9/lib/python3.9/importlib/__init__.py:127: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
test_hello.py:1: in <module>
    from pytestqt import qtbot
E   ModuleNotFoundError: No module named 'pytestqt'
============================================================== short test summary info ===============================================================
ERROR test_hello.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
================================================================== 1 error in 0.08s ==================================================================

I created a simple repo, if you just want to clone it and validate: https://github.com/mkinney/pytest-qt-example

[mkinney]

Got it working.

https://github.com/mkinney/pytest-qt-example

[nicoddemus]

Closing for now, feel free to follow up with further questions.