title: Launch and debug a single script in PyDev
body: <p>I am a beginner in using Eclipse and PyDev (Aptana Studio 3). I am not used to and i don't understand the workflow in such big IDEs as Eclipse.</p>
  
  <p>I have a simple task: i have a simple Python script, which i want to open and run in Eclipse, having its output in Eclipse console. Or debug it.</p>
  
  <p>Until now i used another IDE called <a href="http://eric-ide.python-projects.org/">Eric4</a>, which allowed me to do what i want - open a file and run immediately, without creating a project or setting up launch configurations.</p>
  
  <p>Is this possible in Eclipse, or i have to create a project for each file i want to run or debug? I want to understand how it works.</p>
  
  <p>I guess i understand that creating a project is needed at least for settings up the paths (PYTHONPATH), but if it's a single script - somehow to use by default the current directory?</p>
  
  <p>For example i have a folder called <code>snippets</code> where i keep a lot of python scripts which demonstrate some functionality. How do i open these files one by one and run them?</p>
  
  <p>Most of my coworkers launch python scripts in a separate console - <code>python my_scipt.py</code>.</p>