compat python 3.13

[Jintao-Huang]

No description provided.

[gemini-code-assist]

Code Review

This pull request updates setup.py to use a regular expression for extracting the package version instead of executing the version file. Feedback indicates that the current regex implementation could lead to an AttributeError if no match is found and contains a potentially incorrect character set for quotes; a more robust implementation with error handling was suggested.

[gemini-code-assist]

The current implementation has two potential issues:

1. It will raise an AttributeError if re.search returns None (i.e., the version string is not found), which will crash the setup process.
2. The regex character set ["\'] is likely incorrect. It matches a double quote, a backslash, or a single quote. The intention is likely to match only a double or single quote, which would be ["'].

A more robust implementation would handle the None case and use the correct regex.

Suggested change

	return re.search(r'^__version__\s*=\s*["\'](.+?)["\']', f.read(), re.M).group(1)
	match = re.search(r"""^__version__\s*=\s*["'](.+?)["']""", f.read(), re.M)
	if not match:
	raise RuntimeError('Unable to find version string.')
	return match.group(1)