title: How to use import statement for custom modules in Python
body: <p>I am very new to python programming and writing simple helloworld program by using python 3.3 on windows environoment.The helloworld program is saved as hello.py.  So how can i use it in another module. I tried sys.path.append and give path of my save file but its not working. 
  Can somebody tell me do i have to set Environment variable in windows xp </p>
  
  <p>Thanks.</p>