串口：AttributeError: module ‘serial‘ has no attribute ‘Serial‘

import serial
with serial.Serial('COM4', 9600) as ser: 

Traceback (most recent call last):
  File "d:/111 孙 学习相关/python/serial.py", line 1, in 
    import serial
  File "d:\111 孙 学习相关\python\serial.py", line 4, in 
    with serial.Serial('COM4', 9600, timeout=1) as ser: #延时查询串口1秒钟

AttributeError: module 'serial' has no attribute 'Serial'

遇到此问题：

1.不能用serial.py作为代码名字。貌似是不能用模块名作为代码名字。

2.卸载serial，安装pyserial，重新打开编辑器

pip uninstall serial
pip uninstall pyserial
pip install pyserial