Tests fail with Python 3.11 #49
Description
Describe the bug
Previously passing tests fail when running under Python 3.11
To Reproduce
Steps to reproduce the behavior:
- Install Python 3.11
- Run the tests
Expected behavior
The tests should pass
Environment (please complete the following information):
- OS: macOS
- Metamodel version (or Bridgepoint version used)
- Python version 3.11
- pyxtuml version 2.3.1
Additional context
This appears to be an issue with ply and the underlying regular expression engine used in the lexer. It may be related to this report: dabeaz/ply#282