DeprecationWarning: ast.NameConstant is deprecated and will be removed in Python 3.14

[Hannes Lynchburg]

Hello everyone,

while running tests with pytest for my project using reportlab I get the following warning:

/.venv/lib/python3.12/site-packages/reportlab/lib/rl_safe_eval.py:12: DeprecationWarning: ast.NameConstant is deprecated and will be removed in Python 3.14; use ast.Constant instead
haveNameConstant = hasattr(ast,'NameConstant')

So it seems like this part of the code will stop working with Python 3.14. I think a fix should be pretty easy.

Thanks for developing this library!