Centos7运行报错：ImportError: No module named MySQLdb解决办法

在CENTOS7上运行python，报错ImportError: No module named MySQLdb，具体问题如下：

Traceback (most recent call last):
File "main_fengxing_short_all.py", line 8, in
import db_test
File "/home/python/short_video_all_source/db_test.py", line 4, in
import chang_db
File "/home/python/short_video_all_source/chang_db.py", line 2, in
import MySQLdb
ImportError: No module named MySQLdb

直接运行pip install mysql-python，又会出现如下错误：

ERROR: Command errored out with exit status 1:
command: /bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-Fs3wje/mysql-python/setup.py'"'"'; file='"'"'/tmp/pip-install-Fs3wje/mysql-python/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-Fs3wje/mysql-python/pip-egg-info
cwd: /tmp/pip-install-Fs3wje/mysql-python/
Complete output (10 lines):
sh: mysql_config: command not found
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-install-Fs3wje/mysql-python/setup.py", line 17, in
metadata, options = get_config()
File "setup_posix.py", line 43, in get_config
libs = mysql_config("libs_r")
File "setup_posix.py", line 25, in mysql_config
raise EnvironmentError("%s not found" % (mysql_config.path,))
EnvironmentError: mysql_config not found
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

尝试了网上千千万的方式始终不行，折腾了一个小时，终于解决了，方法如下：

第一步，升级pip：

sudo python -m pip install --upgrade --force pip

第二步，安装setuptools：

sudo pip install setuptools==33.1.1

第三步，安装mysql-devel:

yum install mysql-devel

第四步，安装python-devel:

yum install python-devel

最后，安装mysql-python，再运行脚本就会发现可以了。

pip install mysql-python