I'm trying to install MySQLdb for Python on Mac OS.
When I digit pip install MySQL-python shell returns to this:
 Collecting MySQL-python
  Using cached https://files.pythonhosted.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "", line 1, in 
      File "/private/var/folders/9h/2lp9kx993ygbrfk1lxr0sz500000gq/T/pip-install-7xyyBe/MySQL-python/setup.py", line 17, in 
        metadata, options = get_config()
      File "setup_posix.py", line 53, in get_config
        libraries = [ dequote(i[2:]) for i in libs if i.startswith(compiler_flag("l")) ]
      File "setup_posix.py", line 8, in dequote
        if s[0] in "\"'" and s[0] == s[-1]:
    IndexError: string index out of range

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/9h/2lp9kx993ygbrfk1lxr0sz500000gq/T/pip-install-7xyyBe/MySQL-python/

What can I do? I searched everywhere but I couldn't find an answer.
(I had installed Python 2.7)
I fixed the error. If anyone have this error just follow these steps:

First of all install mysql connector

brew install mysql-connector-c


You have to modify lines in mysql_config (this is an alias)


vim /usr/local/bin/mysql_config 

(I sincerely consider to open mysql_config with a file editor, you can find the 
 exact folder here)

/usr/local/Cellar/mysql-connector-c/6.1.11/bin/ 


Replace these lines.



  # Create options 
  libs="-L$pkglibdir"
  libs="$libs -l "

should be:
  
  # Create options 
  libs="-L$pkglibdir"
  libs="$libs -lmysqlclient -lssl -lcrypto"



Set environment variable


brew info openssl

it would tell what’s needed

 For compilers to find this software you may need to set:
      LDFLAGS:  -L/usr/local/opt/openssl/lib
      CPPFLAGS: -I/usr/local/opt/openssl/include
  For pkg-config to find this software you may need to set:
      PKG_CONFIG_PATH: /usr/local/opt/openssl/lib/pkgconfig



Then you can install MySQL


pip install MySQL-python


You can test if MySQL is installed with this:


python -c "import MySQLdb" 

Hope this works also for you!
pip install MySQL-python