With Python, how can I ensure that folder compression occurs in a specific folder?

I managed to pin the contents of my folder. But I would like the zipped file to remain in the folder that was just compressed. For example, I have pinned a folder named test on my C: drive. But I would like my test.zip file to be contained in C: \ test. How can i do this? Thanks in advance.

clarifying the question with a code example:

Someone kindly pointed out that my question is confusing, but a lot of confusion for Python newbies :) - my preliminary apologies if this question is too simple or the answer is obvious. I don't know how I can guarantee that the resulting zip file is inside the folder that was zipped. In other words, I would like the zip process to take place in "basedir". This way, the user doesn't waste time looking for it somewhere in the C drive.

    def zip_folder(basedir, zip_file):
        z = zipfile.ZipFile(zip_file, 'w', zipfile.ZIP_DEFLATED)
        for dirpath, dirnames, filenames in os.walk(basedir):
        print "zipping files:"
        for fn in filenames:
        print fn
        absfn = os.path.join(dirpath, fn)
        z.write(absfn)
        z.close