I’m trying to use the pytest_ignore_collect hook to skip certain test files in my Pytest setup, but it’s not working as expected. I’m on Windows 10 using Pytest version 7.0. I’m attempting to ignore files named “skip_test_*.py” but they keep getting collected and executed. I followed the official documentation and used the hook in my conftest.py file, but it’s being ignored. I expected those files to be skipped entirely during the test collection phase. Can someone explain why this is happening and how I can resolve it?
Running into issues with pytest_ignore_collect is quite common when you’re new to configuring hooks in Pytest, especially when trying to skip specific test files.
Typically, the problem lies in setting up the condition in the pytest_ignore_collect hook inside your conftest.py correctly. The file paths must match exactly as seen by Pytest during runtime. Ensure you are working within the conftest.py in the root of your test directory.
Here is the snippet that worked for me:
def pytest_ignore_collect(path, config):
if path.basename.startswith("skip_test_"):
return True
This code returns True for any test whose path starts with “skip_test_”, effectively ignoring it during the collection phase. Make sure that Pytest sees the files with the names you expect by including verbose logging if necessary.
Keep an eye on differences in directory separators, especially if your configuration was initially used on another operating system, as this can affect file name pattern matching. If issues persist, consider verifying the test discovery setup with Pytest’s -v (verbose) option to see detailed output.
It’s also a good practice to triple-check your Pytest version and see if it supports all the features of the current hook approach, given this evolves over releases.
I faced a similar issue where my initial attempt using pytest_ignore_collect didn’t yield the results I expected. After some trial and error, it turned out that my pattern matching logic was slightly off due to unexpected directory structures.
The pytest_ignore_collect function is powerful but relies heavily on matching the exact path. A minor directory level difference can cause mismatches. Consider using the pathlib library for better path handling, which adds consistency across platforms.
Here is an alternative approach:
from pathlib import Path
def pytest_ignore_collect(path, config):
if Path(path).name.startswith("skip_test_"):
return True
This snippet uses Path from the pathlib module to handle the path more elegantly, providing cross-platform consistency. This is crucial when dealing with different operating systems or complex directory structures.
If you’re still having trouble, double-check the hierarchy of your test folders and the exact invocation path. Sometimes, running tests from a different directory can alter the perceived relative paths.
Make sure no other Pytest plugins are interfering with the test collection behavior, particularly if other plugins manipulate the collection process.