Question

How to import modules from different folders? I have the following

cgi-bin
       | py
          |
           __init.py__
           http
             |
              __init.py__
              HttpFormParser.py
           xml
             |
              __init.py__
              XmlDocumentCreator.py

I want to import XmlDocumentCreator in HttpFormParser.py. How to do that ?

I’m doing

import py.xml.XmlDocumentCreator

in HttpFormParser.py and its throwing the following error.

/HttpFormParser.py", line 5, in <module> 
    import py.xml.XmlDocumentCreator
ImportError: No module named py.xml.XmlDocumentCreator

Answer 1

Just work out the directory you’re executing from, as told by sys.argv[0]. In this case, you want to get the cgi-bin directory since it contains py:

import os
import sys
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), 
    os.pardir, os.pardir)))
import py.xml.XmlDocumentCreator

P.S. if you’re using WSGI, you don’t need your Python code in a cgi-bin directory, where it could be downloaded if your .htaccess (or equivalent) is set wrong.