See Choosing a test layout/import rules for explanation and follow the advice to avoid using __init__.py. In short, things will be simpler. Note, that other approaches will work too and are not wrong - I just wanted to share what works very well for me.

Jan 21, 2011 · You should import the module normally in the test_module.py (e.g. from package import module). Then run the tests by running nosetests in the project folder. You can also run specific tests by doing nosetests tests/test_module.py .

Apr 8, 2022 · Test for the module name in the sys.modules dictionary: print 'You have not imported the {} module'.format(modulename) From the documenation: This is a dictionary that maps module names to modules which have already been loaded. Note that an import statement does two things:

Jan 24, 2017 · For soft imports you need to handle import exceptions in your code. And with new code come new tests. We want a 100% code coverage, aren’t we all? How to cause ImportError if we have that...

pytest as a testing framework needs to import test modules and conftest.py files for execution. Importing files in Python (at least until recently) is a non-trivial processes, often requiring changing sys.path. Some aspects of the import process can be controlled through the --import-mode command-line flag, which can assume these values:

pytest requires: Python 3.7+ or PyPy3. Create a new file called test_sample.py, containing a function, and a test: The test. =========================== test session starts ============================ . _______________________________ test_answer ________________________________ . def test_answer():

Since there are no packages to derive a full package name from, pytest will import your test files as top-level modules. The test files in the first example (src layout) would be imported as test_app and test_view top-level modules by adding tests/ to sys.path.

3 days ago · Import as few modules as possible and do it as soon as possible. This minimizes external dependencies of tests and also minimizes possible anomalous behavior from side-effects of importing a module. Try to maximize code reuse. On occasion, tests will vary by something as small as what type of input is used.

Apr 8, 2025 · In the below code, You firstly import the "pytest" module, that provides the testing framework. After that you need to define a function func (x)' that takes parameter "x" and returns "x +5".

Oct 28, 2024 · Proper importing techniques in Python 3 with pytest are essential for organizing and utilizing external code efficiently. Understanding how to import modules, specific functions, and using aliases can help improve code readability and maintainability.