title: Pserve Command Not Working
body: <p>I'm new to Python, and am developing a test application using the Pyramid Framework.</p>
  
  <p>Today, for reasons unclear, the pserve command used to start the waitress server stopped functioning. Running: <code>pserve development.ini</code> results in the message: <code>invalid command name 'development.ini'</code>, although it was working fine previously.</p>
  
  <p>I've verified that <code>which pserve</code> is correct, and <code>which python</code> points to the Python of the virtualenv I created for the project. The path to development.ini is also correct.</p>
  
  <p>I've searched all over the web and there doesn't seem to be any documentation on this. Does anyone have experience with this? How can I go about debugging the issue? Any help would be greatly appreciated. Thanks.</p>