PYTHONOPTIMIZE 2 is breaking import of pottery

[FairyTail2000]

Describe the bug
The code crashes when importing pottery with PYTHONOPTIMIZE=2 set.

To Reproduce
Steps to reproduce the behavior:

1. import pottery
2. set enviroment variable PYTHONOPTIMIZE=2
3. run the script
4. See error

Expected behavior
Successful import

Environment (please complete the following information):

• OS: Linux
• Python version: 3.11.5
• Redis version: not applicable

[FairyTail2000]

Suggested patch:
init.py: 36
- __description__: Final[str] = __doc__.split(sep='\n\n', maxsplit=1)[0]
+ __description__: Final[str] = __doc__.split(sep='\n\n', maxsplit=1)[0] if __doc__ else ''

[gourneau]

Some notes about PYTHONOPTIMIZE https://ziade.org/2015/11/25/should-i-use-pythonoptimize/