I've read every other google source and SO thread, with nothing working.
Python 2.7.3 32bit
Windows 7 64bit
"Unable to find vcvarsall.bat".
"RuntimeError: chmod error".
If you don't already have a C/C++ development environment installed that is compatible with the Visual Studio binaries distributed by Python.org, then you should stick to installing only pure Python packages or packages for which a Windows binary is available.
Fortunately, there are PyCrypto binaries available for Windows: http://www.voidspace.org.uk/python/modules.shtml#pycrypto
As @Udi suggests in the comment below, the following command also installs
pycrypto and can be used in
virtualenv as well:
Notice to choose the relevant link for your setup from this list
If you're looking for builds for Python 3.5, see PyCrypto on python 3.5