出现异常：
在pycharm中加Python3.8环境，调用time.clock出异常：AttributeError module 'time' has no attribute 'clock'
经过度娘，其原因：
Python3.8不再支持time.clock，但在调用时依然包含该方法；
有效处理：
用time.perf_counter()替换
import time tis1 =time.perf_counter() print("等待5秒......") time.sleep(5) tis2=time.perf_counter() print(tis2-tis1)
SQLAlchemy报错AttributeError module 'time' has no attribute 'clock'
File "F:\project-python-dev\todo-master\venv\lib\site-packages\sqlalchemy\util\compat.py", line 171, in <module>
time_func = time.clock
AttributeError: module 'time' has no attribute 'clock'
更新SQLAlchemy版本
Flask-SQLAlchemy报错：AttributeError module 'time' has no attribute 'clock'
Traceback (most recent call last):
File "F:/project-python-dev/todo-master/app.py", line 9, in <module>
from flask_sqlalchemy import SQLAlchemy
File "F:\project-python-dev\todo-master\venv\lib\site-packages\flask_sqlalchemy\__init__.py", line 35, in <module>
_timer = time.clock
AttributeError: module 'time' has no attribute 'clock'
更新Flask-SQLAlchemy：
