Ignore dist-packages in stack trace

[siferati]

Description

As per the comment below, the stack trace should contain only user code.

pytest-check/src/pytest_check/pseudo_traceback.py

Line 91 in c26b65f

# we want to trace through user code, not 3rd party or builtin libs

But packages in dist-packages are not currently ignored.

Results

The example below is from a failing check inside a ROS timer callback.

Before

FAILURE: check 1 > 2: Hello world
test_debug.py:38 in test_debug() -> rclpy.spin(foo)
../../../../../../opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/__init__.py:229 in spin() -> executor.spin_once()
../../../../../../opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/executors.py:773 in spin_once() -> self._spin_once_impl(timeout_sec)
../../../../../../opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/executors.py:768 in _spin_once_impl() -> handler()
../../../../../../opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/task.py:254 in __call__() -> self._handler.send(None)
../../../../../../opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/executors.py:463 in handler() -> await call_coroutine(entity, arg)
../../../../../../opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/executors.py:371 in _execute_timer() -> await await_or_execute(tmr.callback)
../../../../../../opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/executors.py:107 in await_or_execute() -> return callback(*args)
test_debug.py:17 in _timer_callback() -> expect.greater(a, b, "Hello world")

After

FAILURE: check 1 > 2: Hello world
test_debug.py:17 in _timer_callback() -> expect.greater(a, b, "Hello world")

[okken]

Cool idea.
Thanks for the PR.
Any thoughts on a way to test it?
not a deal breaker but it’d be cool to have a test case for it

[siferati]

Thanks for the quick review!
I added a unit test now, which inserts a dummy frame into the stack trace, simulating a call to 3rd party code.
The test structure is adapted from test_tracebackhide.py::test_normal_pseudo_traceback.
As expected, the tests fails with current master and passes with this PR.