Estou tentando correrpip install mysql-python connector mas continua me dando um erro "Não é possível abrir o arquivo de inclusão: 'config-win.h'"

A instalação funciona bem no meu Mac e em outra máquina Windows, mas não nesta. Fiz o download do Visual Studio C ++ e tentei instalar como 32 bits e 64.

_mysql.c(42) : fatal error C1083: Cannot open include file: 'config-win.h': No s
uch file or directory

error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 9.0\\VC\\BIN\\c
l.exe' failed with exit status 2

----------------------------------------
Cleaning up...
Command C:\Users\Admin1\Desktop\python\virtual\Scripts\python.exe -c "import set
uptools, tokenize;__file__='C:\\Users\\Admin1\\Desktop\\python\\virtual\\build\\
MySQL-python\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).r
ead().replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\admin
1\appdata\local\temp\1\pip-6pmwrd-record\install-record.txt --single-version-ext
ernally-managed --compile --install-headers C:\Users\Admin1\Desktop\python\virtu
al\include\site\python2.7 failed with error code 1 in C:\Users\Admin1\Desktop\py
thon\virtual\build\MySQL-python
Storing debug log for failure in C:\Users\Admin1\pip\pip.log