ping_check is not working

[Greetlist]

What happened

ping_check is not working, no matter I set it to int or bool

Env

1. Ubuntu 20.04
2. Miniconda 23.1.0
3. Base Env: python3.8

How I fix it temporarily

PyMySQLPool/pymysqlpool/pool.py

Line 179 in 212110a

if not hasattr(c, '__ping_check_timestamp'):

change __ping_check_timestamp ==> _Pool__ping_check_timestamp

Discussion

I do not know why origin code is not working, I also think it it right at first. Maybe it related to Miniconda or Python version?