Question

I have a python project that is like this :

py/
   main.py
   __init__.py
   myapp/
           __init__.py
           my/
                __init__.py
                exam.py
           sub/
                __init__.py
                index.py

and my file contains :
main.py :

from myapp.sub.index import *
cd = myc()
cd.doit()

exam.py –>

class myclass():
  def hel(self):
     print 'Hello world'

index.py –>

from myapp.my.exam import myclass
class myc():
      def doit(self):
          mycc = myclass()  
          mycc.hel() 

I use fedora and when I use command:

python main.py

prints Hello world, but when I want to start main.py in my browser with apache and mod_python this error appears:

File "/var/www/html/py/main.py", line 1, in <module>
  from myapp.sub.index import *

ImportError: No module named myapp.sub.index

Isn’t relative import work in mod_python? what is the problem and what should I do?

Answer 1

I looks like the PYTHONPATH environment variable isn’t correctly set when executing the module under mod_python.

A workaround to the problem, using the directory structure described in the question, would be to add this to main.py file:

import sys, os
sys.path.insert(0, os.path.dirname(__file__))