What import sys; print sys.path says import sys; print sys.path import sys; print sys.path ? This should be a list of directories and zip files, where Python (portable or otherwise) looks for modules to import. Just copy your modules into one of these directories or zip files or sys.path.append('/whatever/dir') if you have your modules in /whatever/dir and you want to save them there (the last approach will only last for the current session, whether interactive or script execution).
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