title: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-1qgj63ha/mysqlclient/
body: <p>In CentOS7.2, I install the mysql client by pip3, but get bellow error:</p>
  
  <pre><code>[root@controller src]# pip3 install mysqlclient
  Collecting mysqlclient
    Using cached mysqlclient-1.3.12.tar.gz
      Complete output from command python setup.py egg_info:
      /bin/sh: mysql_config: did not find the command
      Traceback (most recent call last):
        File "&lt;string&gt;", line 1, in &lt;module&gt;
        File "/tmp/pip-build-1qgj63ha/mysqlclient/setup.py", line 17, in &lt;module&gt;
          metadata, options = get_config()
        File "/tmp/pip-build-1qgj63ha/mysqlclient/setup_posix.py", line 44, in get_config
          libs = mysql_config("libs_r")
        File "/tmp/pip-build-1qgj63ha/mysqlclient/setup_posix.py", line 26, 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 /tmp/pip-build-1qgj63ha/mysqlclient/
  </code></pre>
  
  <p>As we all know the mysqlclient for Python3 is the replacement of MySQL-python for Python2. But why in CentOS7.2 I can not install it? </p>