Im trying install Mysql-python on windows x64.
I installed python x64, setuptools (checked on the
"Unable to find vcvarsall.bat" means that you haven't got the necessary Visual Studio directories in your path.
However, if you are using 64 bit Python then you'll need a 64 bit compiler and Express doesn't come in 64 bit flavours. You could download the SDK MSVC compiler and get that configured but its very hard work.
If I was you I'd switch to 32 bit Python and you can almost surely get pre-built binaries.
EDIT
Pre-built 64 bit binaries as found by piquadrat would be even simpler!