linux 安装python MySQLdb

转自：https://my.oschina.net/jywm/blog/757973

安装步骤

在服务器安装了mysql 或者mysql-connect的前提下

1、安装setuptools

2、安装mysql-python

1、No module named setuptools

*原因

没有安装setuptools工具

*解决方案

在python官网https://pypi.python.org搜 setuptools工具，复制工具连接，然后如下操作

#wget https://pypi.python.org/packages/6b/dd/a7de8caeeffab76bacf56972b3f090c12e0ae6932245abbce706690a6436/setuptools-2#md5=a46750b6bd90a1343466bd57b0e2721a
#tar -zxvf setuptools-28.3.0.tar.gz
#python setup.py build
#python setup.py install

2、mysql_config找不到

*现象

[[email protected] MySQL-python-1.2.5]# python setup.py  build
sh: mysql_config: command not found
Traceback (most recent call last):
  File "setup.py", line 17, in <module>
    metadata, options = get_config()
  File "/opt/MySQL-python-1.2.5/setup_posix.py", line 43, in get_config
    libs = mysql_config("libs_r")
  File "/opt/MySQL-python-1.2.5/setup_posix.py", line 25, in mysql_config
    raise EnvironmentError("%s not found" % (mysql_config.path,))
EnvironmentError: mysql_config not found
[[email protected] MySQL-python-1.2.5]# cd MySQL
-bash: cd: MySQL: No such file or directory
[[email protected] MySQL-python-1.2.5]#  cd MySQLdb/
-bash: $‘\345\207\272cd‘: command not found

*原因：

mysql_config 找不到，是因为在setup_posix.py文件中调用了mysql_config。而改参数的设置的值在site.cfg中

   11 def compiler_flag(f):
     12     return "-%s" % f
     13
     14 def mysql_config(what):
     15     from os import popen
     16
     17     f = popen("%s --%s" % (mysql_config.path, what))
     18     data = f.read().strip().split()
     19     ret = f.close()
     20     if ret:
     21         if ret/256:
     22             data = []
     23         if ret/256 > 1:
     24             raise EnvironmentError("%s not found" % (mysql_config.path,))
     25     return data
     26 mysql_config.path = "mysql_config"

打开 site.cfg 发现结果是linux的mysq_config 被注释掉了。所以只要将系统的mysql_config 注释去掉，并且后面的路径改成自己系统的mysql的mysql_config路径

[[email protected] MySQL-python-1.2.3]# cat site.cfg
[options]
# embedded: link against the embedded server library
# threadsafe: use the threadsafe client
# static: link against a static library (probably required for embedded)

embedded = False
threadsafe = True
static = False

# The path to mysql_config.
# Only use this if mysql_config is not on your PATH, or you have some weird
# setup that requires it.
# mysql_config = /usr/local/bin/mysql_config

# The Windows registry key for MySQL.
# This has to be set for Windows builds to work.
# Only change this if you have a different version.
registry_key = SOFTWARE\MySQL AB\MySQL Server 5.0

解决方案：

1、找到mysql_config

[[email protected] MySQL-python-1.2.3]# find / -name "mysql_config"
/usr/bin/mysql_config

2、修改site.cfg

[[email protected] MySQL-python-1.2.3]# cat site.cfg
[options]
# embedded: link against the embedded server library
# threadsafe: use the threadsafe client
# static: link against a static library (probably required for embedded)

embedded = False
threadsafe = True
static = False

# The path to mysql_config.
# Only use this if mysql_config is not on your PATH, or you have some weird
# setup that requires it.
mysql_config = /usr/bin/mysql_config

# The Windows registry key for MySQL.
# This has to be set for Windows builds to work.
# Only change this if you have a different version.
#registry_key = SOFTWARE\MySQL AB\MySQL Server 5.0

3、unable to execute gcc: No such file or directory

*现象

creating build/temp.linux-x86_64-2.7
gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -Dversion_info=(1,2,5,‘final‘,1) -D__version__=1.2.5 -I/usr/include/mysql -I/usr/include/python2.7 -c _mysql.c -o build/temp.linux-x86_64-2.7/_mysql.o -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -fPIC -g -fabi-version=2 -fno-omit-frame-pointer -fno-strict-aliasing -DMY_PTHREAD_FASTMUTEX=1
unable to execute gcc: No such file or directory
error: command ‘gcc‘ failed with exit status 1

*原因

 由于gcc工具没有安装导致无法使用gcc工具编译

*解决方案：

#yum install gcc -y

4、/usr/bin/ld: cannot find -lmysqlclient_r

*现象

[[email protected] MySQL-python-1.2.3]# python setup.py  build
running build
running build_py
copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb
running build_ext
building ‘_mysql‘ extension
gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -Dversion_info=(1,2,3,‘final‘,0) -D__version__=1.2.3 -I/usr/include/mysql -I/usr/include/python2.7 -c _mysql.c -o build/temp.linux-x86_64-2.7/_mysql.o -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -fPIC -g -fabi-version=2 -fno-omit-frame-pointer -fno-strict-aliasing -DMY_PTHREAD_FASTMUTEX=1
In file included from _mysql.c:36:0:
/usr/include/mysql/my_config.h:440:0: warning: "HAVE_WCSCOLL" redefined [enabled by default]
 #define HAVE_WCSCOLL
 ^
In file included from /usr/include/python2.7/pyconfig.h:6:0,
                 from /usr/include/python2.7/Python.h:8,
                 from pymemcompat.h:10,
                 from _mysql.c:29:
/usr/include/python2.7/pyconfig-64.h:908:0: note: this is the location of the previous definition
 #define HAVE_WCSCOLL 1
 ^
gcc -pthread -shared -Wl,-z,relro build/temp.linux-x86_64-2.7/_mysql.o -L/usr/lib64 -L/usr/lib64 -lmysqlclient_r -lpthread -lm -lrt -ldl -lpython2.7 -o build/lib.linux-x86_64-2.7/_mysql.so
/usr/bin/ld: cannot find -lmysqlclient_r
collect2: error: ld returned 1 exit status
error: command ‘gcc‘ failed with exit status 1

*原因

这个可以看出是找不到mysqlclient_r文件或函数； ^
从gcc -pthread -shared -Wl,-z,relro build/temp.linux-x86_64-2.7/_mysql.o -L/usr/lib64 -L/usr/lib64 可以得到gcc在/usr/lib64 路径下找mysqlclient_r，但是找不到。3.

*解决方案

这个错误找了很长时间，最后通过的 jk409博客https://my.oschina.net/jk409/blog/392035

解决了，感谢 jk409

解决方法（copy文件到/usr/lib64/路径下）：

#cp /usr/lib64/mysql/libmysqlclient_r.a     /usr/lib64/

最后再编译，安装，如下

[[email protected] MySQL-python-1.2.3]# python setup.py  build
running build
running build_py
copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb
running build_ext
[[email protected] MySQL-python-1.2.3]# python setup.py  install
running install
running bdist_egg
running egg_info
writing MySQL_python.egg-info/PKG-INFO
writing top-level names to MySQL_python.egg-info/top_level.txt
writing dependency_links to MySQL_python.egg-info/dependency_links.txt
reading manifest file ‘MySQL_python.egg-info/SOURCES.txt‘
reading manifest template ‘MANIFEST.in‘
warning: no files found matching ‘MANIFEST‘
warning: no files found matching ‘ChangeLog‘
warning: no files found matching ‘GPL‘
writing manifest file ‘MySQL_python.egg-info/SOURCES.txt‘
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb
running build_ext
creating build/bdist.linux-x86_64
creating build/bdist.linux-x86_64/egg
creating build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/release.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/__init__.py -> build/bdist.linux-x86_64/egg/MySQLdb
creating build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/ER.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/__init__.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/CR.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/FLAG.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/CLIENT.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/REFRESH.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/FIELD_TYPE.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/cursors.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/times.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/connections.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/converters.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/_mysql.so -> build/bdist.linux-x86_64/egg
copying build/lib.linux-x86_64-2.7/_mysql_exceptions.py -> build/bdist.linux-x86_64/egg
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/release.py to release.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/ER.py to ER.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/CR.py to CR.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/FLAG.py to FLAG.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/CLIENT.py to CLIENT.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/REFRESH.py to REFRESH.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/FIELD_TYPE.py to FIELD_TYPE.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/cursors.py to cursors.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/times.py to times.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/connections.py to connections.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/converters.py to converters.pyc
byte-compiling build/bdist.linux-x86_64/egg/_mysql_exceptions.py to _mysql_exceptions.pyc
creating stub loader for _mysql.so
byte-compiling build/bdist.linux-x86_64/egg/_mysql.py to _mysql.pyc
creating build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
writing build/bdist.linux-x86_64/egg/EGG-INFO/native_libs.txt
zip_safe flag not set; analyzing archive contents...
creating dist
creating ‘dist/MySQL_python-1.2.3-py2.7-linux-x86_64.egg‘ and adding ‘build/bdist.linux-x86_64/egg‘ to it
removing ‘build/bdist.linux-x86_64/egg‘ (and everything under it)
Processing MySQL_python-1.2.3-py2.7-linux-x86_64.egg
Copying MySQL_python-1.2.3-py2.7-linux-x86_64.egg to /usr/lib64/python2.7/site-packages
Adding MySQL-python 1.2.3 to easy-install.pth file

Installed /usr/lib64/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-x86_64.egg
Processing dependencies for MySQL-python==1.2.3
Finished processing dependencies for MySQL-python==1.2.3

操作过程

[[email protected] opt]# cd MySQL-python-1.2.5
[[email protected] MySQL-python-1.2.5]# ls
GPL-2.0  INSTALL      MySQL_python.egg-info  PKG-INFO   _mysql.c              doc           pymemcompat.h  setup.py         setup_posix.py    site.cfg
HISTORY  MANIFEST.in  MySQLdb                README.md  _mysql_exceptions.py  metadata.cfg  setup.cfg      setup_common.py  setup_windows.py  tests
[[email protected] MySQL-python-1.2.5]# vim site.cfg
[[email protected] MySQL-python-1.2.5]# python setup.py  build
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
copying _mysql_exceptions.py -> build/lib.linux-x86_64-2.7
creating build/lib.linux-x86_64-2.7/MySQLdb
copying MySQLdb/__init__.py -> build/lib.linux-x86_64-2.7/MySQLdb
copying MySQLdb/converters.py -> build/lib.linux-x86_64-2.7/MySQLdb
copying MySQLdb/connections.py -> build/lib.linux-x86_64-2.7/MySQLdb
copying MySQLdb/cursors.py -> build/lib.linux-x86_64-2.7/MySQLdb
copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb
copying MySQLdb/times.py -> build/lib.linux-x86_64-2.7/MySQLdb
creating build/lib.linux-x86_64-2.7/MySQLdb/constants
copying MySQLdb/constants/__init__.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants
copying MySQLdb/constants/CR.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants
copying MySQLdb/constants/FIELD_TYPE.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants
copying MySQLdb/constants/ER.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants
copying MySQLdb/constants/FLAG.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants
copying MySQLdb/constants/REFRESH.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants
copying MySQLdb/constants/CLIENT.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants
running build_ext
building ‘_mysql‘ extension
creating build/temp.linux-x86_64-2.7
gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -Dversion_info=(1,2,5,‘final‘,1) -D__version__=1.2.5 -I/usr/include/mysql -I/usr/include/python2.7 -c _mysql.c -o build/temp.linux-x86_64-2.7/_mysql.o -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -fPIC -g -fabi-version=2 -fno-omit-frame-pointer -fno-strict-aliasing -DMY_PTHREAD_FASTMUTEX=1
In file included from _mysql.c:44:0:
/usr/include/mysql/my_config.h:440:0: warning: "HAVE_WCSCOLL" redefined [enabled by default]
 #define HAVE_WCSCOLL
 ^
In file included from /usr/include/python2.7/pyconfig.h:6:0,
                 from /usr/include/python2.7/Python.h:8,
                 from _mysql.c:29:
/usr/include/python2.7/pyconfig-64.h:908:0: note: this is the location of the previous definition
 #define HAVE_WCSCOLL 1
 ^
gcc -pthread -shared -Wl,-z,relro build/temp.linux-x86_64-2.7/_mysql.o -L/usr/lib64 -L/usr/lib64 -lmysqlclient_r -lpthread -lm -lrt -ldl -lpython2.7 -o build/lib.linux-x86_64-2.7/_mysql.so
[[email protected] MySQL-python-1.2.5]# cp /usr/lib64/mysql/libmysqlclient_r.a  /usr/lib64/lmysqlclient_r
[[email protected] MySQL-python-1.2.5]# python setup.py  build
running build
running build_py
copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb
running build_ext
[[email protected] MySQL-python-1.2.5]# python setup.py  install
running install
running bdist_egg
running egg_info
writing MySQL_python.egg-info/PKG-INFO
writing top-level names to MySQL_python.egg-info/top_level.txt
writing dependency_links to MySQL_python.egg-info/dependency_links.txt
reading manifest file ‘MySQL_python.egg-info/SOURCES.txt‘
reading manifest template ‘MANIFEST.in‘
writing manifest file ‘MySQL_python.egg-info/SOURCES.txt‘
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb
running build_ext
creating build/bdist.linux-x86_64
creating build/bdist.linux-x86_64/egg
creating build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/release.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/__init__.py -> build/bdist.linux-x86_64/egg/MySQLdb
creating build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/ER.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/__init__.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/CR.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/FLAG.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/CLIENT.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/REFRESH.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/FIELD_TYPE.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/cursors.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/times.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/connections.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/converters.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/_mysql.so -> build/bdist.linux-x86_64/egg
copying build/lib.linux-x86_64-2.7/_mysql_exceptions.py -> build/bdist.linux-x86_64/egg
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/release.py to release.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/ER.py to ER.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/CR.py to CR.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/FLAG.py to FLAG.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/CLIENT.py to CLIENT.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/REFRESH.py to REFRESH.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/FIELD_TYPE.py to FIELD_TYPE.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/cursors.py to cursors.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/times.py to times.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/connections.py to connections.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/converters.py to converters.pyc
byte-compiling build/bdist.linux-x86_64/egg/_mysql_exceptions.py to _mysql_exceptions.pyc
creating stub loader for _mysql.so
byte-compiling build/bdist.linux-x86_64/egg/_mysql.py to _mysql.pyc
creating build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
writing build/bdist.linux-x86_64/egg/EGG-INFO/native_libs.txt
zip_safe flag not set; analyzing archive contents...
creating dist
creating ‘dist/MySQL_python-1.2.5-py2.7-linux-x86_64.egg‘ and adding ‘build/bdist.linux-x86_64/egg‘ to it
removing ‘build/bdist.linux-x86_64/egg‘ (and everything under it)
Processing MySQL_python-1.2.5-py2.7-linux-x86_64.egg
Copying MySQL_python-1.2.5-py2.7-linux-x86_64.egg to /usr/lib64/python2.7/site-packages
Removing MySQL-python 1.2.3 from easy-install.pth file
Adding MySQL-python 1.2.5 to easy-install.pth file

Installed /usr/lib64/python2.7/site-packages/MySQL_python-1.2.5-py2.7-linux-x86_64.egg
Processing dependencies for MySQL-python==1.2.5
Finished processing dependencies for MySQL-python==1.2.5
[[email protected] MySQL-python-1.2.5]#

出现问题

>>> import  MySQLdb
/usr/lib64/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-x86_64.egg/_mysql.py:3: UserWarning: Module _mysql was already imported from /usr/lib64/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-x86_64.egg/_mysql.pyc, but /opt/MySQL-python-1.2.3 is being added to sys.path
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "MySQLdb/__init__.py", line 19, in <module>
    import _mysql
  File "build/bdist.linux-x86_64/egg/_mysql.py", line 7, in <module>
  File "build/bdist.linux-x86_64/egg/_mysql.py", line 6, in __bootstrap__
ImportError: /root/.cache/Python-Eggs/MySQL_python-1.2.3-py2.7-linux-x86_64.egg-tmp/_mysql.so: undefined symbol: __cxa_pure_virtual

解决

[[email protected] build]# cd ..
[[email protected] MySQL-python-1.2.5]# cd build/

[[email protected] build]#  g++ -pthread -shared ./temp.linux-x86_64-2.7/_mysql.o -L/usr/lib64 -l mysqlclient_r -lpthread -lm -lrt -ldl -o ./lib.linux-x86_64-2.7/_mysql.so
-bash: g++: command not found
[[email protected] build]# yum install -y gcc-c++
.................
Running transaction
  Installing : libstdc++-devel-4.8.5-4.el7.x86_64                                                                                                                           1/2
  Installing : gcc-c++-4.8.5-4.el7.x86_64                                                                                                                                   2/2
  Verifying  : libstdc++-devel-4.8.5-4.el7.x86_64                                                                                                                           1/2
  Verifying  : gcc-c++-4.8.5-4.el7.x86_64                                                                                                                                   2/2

Installed:
  gcc-c++.x86_64 0:4.8.5-4.el7

Dependency Installed:
  libstdc++-devel.x86_64 0:4.8.5-4.el7

[[email protected] build]#  g++ -pthread -shared ./temp.linux-x86_64-2.7/_mysql.o -L/usr/lib64 -l mysqlclient_r -lpthread -lm -lrt -ldl -o ./lib.linux-x86_64-2.7/_mysql.so
[[email protected] build]#

再重新build，install python

[[email protected] build]# cd ..
[[email protected] MySQL-python-1.2.5]# ls
GPL-2.0  INSTALL      MySQL_python.egg-info  PKG-INFO   _mysql.c              build  doc           pymemcompat.h  setup.py         setup_common.pyc  setup_posix.pyc   site.cfg
HISTORY  MANIFEST.in  MySQLdb                README.md  _mysql_exceptions.py  dist   metadata.cfg  setup.cfg      setup_common.py  setup_posix.py    setup_windows.py  tests
[[email protected] MySQL-python-1.2.5]# python setup.py build
running build
running build_py
copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb
running build_ext
[[email protected] MySQL-python-1.2.5]# python setup.py install
running install
running bdist_egg
running egg_info
writing MySQL_python.egg-info/PKG-INFO
writing top-level names to MySQL_python.egg-info/top_level.txt
writing dependency_links to MySQL_python.egg-info/dependency_links.txt
reading manifest file ‘MySQL_python.egg-info/SOURCES.txt‘
reading manifest template ‘MANIFEST.in‘
writing manifest file ‘MySQL_python.egg-info/SOURCES.txt‘
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb
running build_ext
creating build/bdist.linux-x86_64/egg
creating build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/release.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/__init__.py -> build/bdist.linux-x86_64/egg/MySQLdb
creating build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/ER.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/__init__.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/CR.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/FLAG.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/CLIENT.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/REFRESH.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/constants/FIELD_TYPE.py -> build/bdist.linux-x86_64/egg/MySQLdb/constants
copying build/lib.linux-x86_64-2.7/MySQLdb/cursors.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/times.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/connections.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/MySQLdb/converters.py -> build/bdist.linux-x86_64/egg/MySQLdb
copying build/lib.linux-x86_64-2.7/_mysql.so -> build/bdist.linux-x86_64/egg
copying build/lib.linux-x86_64-2.7/_mysql_exceptions.py -> build/bdist.linux-x86_64/egg
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/release.py to release.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/ER.py to ER.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/CR.py to CR.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/FLAG.py to FLAG.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/CLIENT.py to CLIENT.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/REFRESH.py to REFRESH.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/constants/FIELD_TYPE.py to FIELD_TYPE.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/cursors.py to cursors.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/times.py to times.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/connections.py to connections.pyc
byte-compiling build/bdist.linux-x86_64/egg/MySQLdb/converters.py to converters.pyc
byte-compiling build/bdist.linux-x86_64/egg/_mysql_exceptions.py to _mysql_exceptions.pyc
creating stub loader for _mysql.so
byte-compiling build/bdist.linux-x86_64/egg/_mysql.py to _mysql.pyc
creating build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying MySQL_python.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
writing build/bdist.linux-x86_64/egg/EGG-INFO/native_libs.txt
zip_safe flag not set; analyzing archive contents...
creating ‘dist/MySQL_python-1.2.5-py2.7-linux-x86_64.egg‘ and adding ‘build/bdist.linux-x86_64/egg‘ to it
removing ‘build/bdist.linux-x86_64/egg‘ (and everything under it)
Processing MySQL_python-1.2.5-py2.7-linux-x86_64.egg
Removing /usr/lib64/python2.7/site-packages/MySQL_python-1.2.5-py2.7-linux-x86_64.egg
Copying MySQL_python-1.2.5-py2.7-linux-x86_64.egg to /usr/lib64/python2.7/site-packages
MySQL-python 1.2.5 is already the active version in easy-install.pth

Installed /usr/lib64/python2.7/site-packages/MySQL_python-1.2.5-py2.7-linux-x86_64.egg
Processing dependencies for MySQL-python==1.2.5
Finished processing dependencies for MySQL-python==1.2.5
[[email protected] MySQL-python-1.2.5]# python
Python 2.7.5 (default, Sep 15 2016, 22:37:39)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import MySQLdb
/usr/lib64/python2.7/site-packages/MySQL_python-1.2.5-py2.7-linux-x86_64.egg/_mysql.py:3: UserWarning: Module _mysql was already imported from /usr/lib64/python2.7/site-packages/MySQL_python-1.2.5-py2.7-linux-x86_64.egg/_mysql.pyc, but /opt/MySQL-python-1.2.5 is being added to sys.path
>>>
>>> MySQLdb.version_info
(1, 2, 5, ‘final‘, 1)
>>> dir(MySQLdb)
[‘BINARY‘, ‘Binary‘, ‘Connect‘, ‘Connection‘, ‘DATE‘, ‘DATETIME‘, ‘DBAPISet‘, ‘DataError‘, ‘DatabaseError‘, ‘Date‘, ‘DateFromTicks‘, ‘Error‘, ‘FIELD_TYPE‘, ‘IntegrityError‘, ‘InterfaceError‘, ‘InternalError‘, ‘MySQLError‘, ‘NULL‘, ‘NUMBER‘, ‘NotSupportedError‘, ‘OperationalError‘, ‘ProgrammingError‘, ‘ROWID‘, ‘STRING‘, ‘TIME‘, ‘TIMESTAMP‘, ‘Time‘, ‘TimeFromTicks‘, ‘Timestamp‘, ‘TimestampFromTicks‘, ‘Warning‘, ‘__all__‘, ‘__author__‘, ‘__builtins__‘, ‘__doc__‘, ‘__file__‘, ‘__name__‘, ‘__package__‘, ‘__path__‘, ‘__revision__‘, ‘__version__‘, ‘_mysql‘, ‘apilevel‘, ‘connect‘, ‘connection‘, ‘constants‘, ‘debug‘, ‘escape‘, ‘escape_dict‘, ‘escape_sequence‘, ‘escape_string‘, ‘get_client_info‘, ‘paramstyle‘, ‘release‘, ‘result‘, ‘server_end‘, ‘server_init‘, ‘string_literal‘, ‘test_DBAPISet_set_equality‘, ‘test_DBAPISet_set_equality_membership‘, ‘test_DBAPISet_set_inequality‘, ‘test_DBAPISet_set_inequality_membership‘, ‘thread_safe‘, ‘threadsafety‘, ‘times‘, ‘version_info‘]

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