The implementation of platform.architecture shells out to the file command. It tries to escape quotes by replacing " with \", but that's not sufficient.

$ python3.2 -c 'import platform; platform.architecture("foo\\\"; echo Hi there > /tmp/Z; echo \\\"")' && cat /tmp/Z
Hi there

Here's a patch to make it use subprocess instead. I haven't tested it thoroughly building everything from trunk and running tests, but I verified it works by replacing the platform.py in my system Python install.