title: Calling and modifying strings from a separate file
body: <p>I'm trying to house url's in a separate file to make the main file easier to read. My issue is trying to call a url and add text I want to it. My code currently looks like this:</p>
  <pre><code>**urls.py:**
  def addressList(input):
      a = f'www.url.com/{input}'
      b = f'www.differenturl.com/{input}'
      c = f'www.thirdUrl.com/{input}'
  
  **main.py**:
  import urls
  
  def mainFunction():
      return(urls.addressList('my_text_here').a   #I expected this to return &quot;www.url.com/my_text_here but 
  it throws &quot;AttributeError: 'NoneType' object has no attribute 'a'&quot;
  
  </code></pre>
  <p>How can I access the variables inside of a function in a different file, or is there a better way to go about this?</p>