<!-- Use this template for hard crashes of the interpreter, segmentation faults, failed C-level assertions, and similar. Do not submit this form if you encounter an exception being unexpectedly raised from a Python function. Most of the time, these should be filed as bugs, rather than crashes. The CPython interpreter is itself written in a different programming language, C. For CPython, a "crash" is when Python itself fails, leading to a traceback in the C stack. --> # Crash report Tell us what happened, ideally including a minimal, reproducible example (https://stackoverflow.com/help/minimal-reproducible-example). # Error messages Enter any relevant error message caused by the crash, including a core dump if there is one. # Your environment <!-- Include as many relevant details as possible about the environment you experienced the bug in --> - CPython versions tested on: - Operating system and architecture: <!-- You can freely edit this text. Remove any lines you believe are unnecessary. -->