title: Python name 'os' is not defined
body: <p>I am trying to run this python module</p>
  
  <pre><code>from settings import PROJECT_ROOT
  
  DEBUG = True
  TEMPLATE_DEBUG = DEBUG
  
  
  DATABASES = {
      'default': {
          'ENGINE':  'django.db.backends.sqlite3',
          'NAME' : os.path.join(BASE_DIR, 'db_name.sqlite3'),
      }
  }
  
  
  # Make this unique, and don't share it with anybody.
  SECRET_KEY = 'sdfgtardyure34654356435'
  
  # Python dotted path to the WSGI application used by Django's runserver; added in v1.4
  WSGI_APPLICATION = 'wsgi.application'
  
  ############### PYSEC specific variables
  
  # assumes this directory exists
  DATA_DIR = "%s/pysec/data/" % PROJECT_ROOT
  </code></pre>
  
  <p>But whenever i try to run it by <code>F5</code> i get this</p>
  
  <pre><code>Traceback (most recent call last):
    File "C:\Python27\pysec-master\local_settings-example.py", line 11, in &lt;module&gt;
      'NAME' : os.path.join(BASE_DIR, 'db_name.sqlite3'),
  NameError: name 'os' is not defined
  </code></pre>
  
  <p>The module lives in the <code>C:\Python27\pysec-master</code> and i got pysec for <a href="https://github.com/lukerosiak/pysec">here</a></p>
  
  <p>Do you know what must i do to run the module with success?</p>