Fix ParserSyntaxError

✅ Solution

ParserSyntaxError in Celery usually arises from malformed `install_requires` entries within `setup.py` or `setup.cfg`, such as invalid version specifiers or non-PEP 440 compliant strings. Correct the problematic entries by ensuring each requirement adheres to valid packaging standards and version constraints (e.g., `pytz>=2020.1`, not `pytz>dev`). After fixing the setup file, rebuild the Celery distribution.