Command "python setup.py egg_info" failed with error code 1

mysqlclient==1.4.2
导包错误：
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/pm/t_gvmn156qn6yf7vmsvl6r1c0000gn/T/pip-install-cw0dsug6/mysqlclient/

wengzhenxis-MacBook-Pro:orion wengzhenxi$ pip3 install mysqlclient==1.4.2
Collecting mysqlclient==1.4.2
  Using cached https://files.pythonhosted.org/packages/73/79/67ddf24ac31b05d741f0ac87fa612c7a11bab1b39b8270ed7344d149f8af/mysqlclient-1.4.2.tar.gz
    Complete output from command python setup.py egg_info:
    /bin/sh: mysql_config: command not found
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/pm/t_gvmn156qn6yf7vmsvl6r1c0000gn/T/pip-install-cw0dsug6/mysqlclient/setup.py", line 16, in <module>
        metadata, options = get_config()
      File "/private/var/folders/pm/t_gvmn156qn6yf7vmsvl6r1c0000gn/T/pip-install-cw0dsug6/mysqlclient/setup_posix.py", line 51, in get_config
        libs = mysql_config("libs")
      File "/private/var/folders/pm/t_gvmn156qn6yf7vmsvl6r1c0000gn/T/pip-install-cw0dsug6/mysqlclient/setup_posix.py", line 29, in mysql_config
        raise EnvironmentError("%s not found" % (_mysql_config_path,))
    OSError: mysql_config not found
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/pm/t_gvmn156qn6yf7vmsvl6r1c0000gn/T/pip-install-cw0dsug6/mysqlclient/
wengzhenxis-MacBook-Pro:orion wengzhenxi$ 

solve

Mainly due to the mac and python2 python3 coexistence caused reference solution
Reference

sudo python3 -m pip install aiohttp

sudo python3 -m pip install --upgrade pip