title: django: ImportError: No module named question_answers.models
body: <p>here is my django code</p>
  
  <p>folder structure</p>
  
  <pre><code>edutech_quiz--&gt;question_answers--&gt;models.py
  </code></pre>
  
  <p>test.py file</p>
  
  <pre><code>from question_answers.models import Quiz, Category, Option, SubcategoryName
  import os, sys
  import argparse
  </code></pre>
  
  <p>error :</p>
  
  <pre><code>Traceback (most recent call last):
    File "test.py", line 1, in &lt;module&gt;
      from question_answers.models import Quiz, Category, Option,SubcategoryName
  ImportError: No module named question_answers.models
  </code></pre>
  
  <p>but it work fine on python shell</p>
  
  <pre><code>In [4]: from question_answers.models import Quiz, Category, Option, SubcategoryName
  
  In [5]: Category.objects.all()
  Out[5]: []
  </code></pre>
  
  <p>how can I solve the import error</p>