Pymysql可以'；t connect do MySQL数据库：挂起在；将自己的袜子收进（b）“；？

目前在macOS 10.15上使用python 3.7，安装了MySQL 8.0.19。使用虚拟环境设置在VScode中开发。我还在phpmyadmin中创建了一个本地数据库。我想尽可能连接到它。脚本：

import pymysql

print("Before")
connection = pymysql.connect(host='localhost',
    user='myUserName', password='myPassword', db='db_name', charset='utf8mb4', 
          cursorclass=pymysql.cursors.DictCursor)
print("After")

当我运行脚本时，执行将无限期挂起。打印“之后”，我必须退出执行。Trackback是：

Traceback (most recent call last):
File "connect.py", line 5, in <module>
  user='myUserName', password='myPassword', db='db_name', charset='utf8mb4', 
  cursorclass=pymysql.cursors.DictCursor)
File "/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site- 
  packages/pymysql/__init__.py", line 94, in Connect
  return Connection(*args, **kwargs)
File "/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site- 
  packages/pymysql/connections.py", line 325, in __init__
  self.connect()
File "/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site- 
  packages/pymysql/connections.py", line 598, in connect
  self._get_server_information()
File "/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site- 
  packages/pymysql/connections.py", line 975, in _get_server_information
  packet = self._read_packet()
File "/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site- 
packages/pymysql/connections.py", line 657, in _read_packet
  packet_header = self._read_bytes(4)
File "/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site- 
  packages/pymysql/connections.py", line 691, in _read_bytes
  data = self._rfile.read(num_bytes)
File "/usr/local/Cellar/python/3.7.6_1/Frameworks/Python.framework/Versions/3.7/lib/
python3.7/socket.py", line 589, in readinto
  return self._sock.recv_into(b)
KeyboardInterrupt

回溯（最近一次呼叫最后一次）：
文件“connect.py”，第5行，在
user='myUserName'，password='myPassword'，db='db_name'，charset='utf8mb4'，
cursorclass=pymysql.cursors.DictCursor）
文件“/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site-
packages/pymysql/_init__.py”，第94行，在Connect中
返回连接（*args，**kwargs）
文件“/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site-
packages/pymysql/connections.py”，第325行，在__
self.connect（）
文件“/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site-
packages/pymysql/connections.py”，第598行，在connect中
self.\u获取\u服务器\u信息（）
文件“/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site-
packages/pymysql/connections.py”，第975行，在获取服务器信息中
数据包=自身。\u读取\u数据包（）
文件“/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site-
packages/pymysql/connections.py”，第657行，在读包中
数据包头=self.\u读取字节（4）
文件“/Users/name/Documents/Work/Connection Test/env/lib/python3.7/site-
packages/pymysql/connections.py”，第691行，以字节为单位
data=self.\u rfile.read（num\u字节）
文件“/usr/local/ceral/python/3.7.6_1/Frameworks/python.framework/Versions/3.7/lib/
python3.7/socket.py”，第589行，读入
返回自我。将袜子重新放入（b）
键盘中断

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不知道为什么会这样。这里发生了什么？我已经搜索了大量关于堆栈溢出的问题，但没有一个对我有帮助

通过在pymysql connect函数中添加“unix_socket”参数，问题得以解决。请参见此处的答案：

这个脚本起作用了

import pymysql

print("Before")
conn = pymysql.connect(db='w_dev', user='root', passwd='celebrate', 
unix_socket="/tmp/mysql.sock")
print("After")