Tutorial 2: Installing and Getting Started with Aptana Studio 3 with PyDev

Download site for Aptana Studio 3 (w PyDev): http://aptana.com/products/studio3/download
Download site for Python 2.7.3: http://python.org/download/
Tutorial for first PyDev project: http://pydev.org/manual_101_root.html

Here I would recommend installing Aptana Studio 3 that comes with PyDev because if you are interested in Web App dev then Aptana comes with a pretty good code checker for CSS/HMTL. However, if you choose to install just PyDev alone, then just follow the instructions for the tutorial in “manual 101 for PyDev” (second link above).

What I did was to install Aptana Studio 3 as an Eclipse Plugin and hence installing PyDev in the process. Ran into some small problems installing the plugin – the installation could not complete and it keeps getting timed out. At first I thought the problem was because Eclipse 4.3 does not have Aptana Studio 3 dependencies. Turns out my Eclipse was version 4.2.1 so it should work fine. A simple restarting of Eclipse before trying to install the plugin again worked. The installation continued where it last left off and completed. Do remember to restart Eclipse after installation.

Then I follow the PyDev “manual 101 for PyDev” configure my python interpreter for PyDev. The tutorial is meant for windows so here are some changes to note for Mac:

– instead of windows>preferences, it’s supposed to be Eclipse>preferences.
– mac OSX does not ship with the complete python .py source files, so I downloaded a copy from python.org “Python 2.7.3 Mac OS X 64-bit/32-bit x86-64/i386 Installer” :

Installation of python is done with a .dmg installation executable. So it’s pretty straight forward. Reading the README shows:

” The installer puts applications, an “Update Shell Profile” command, and an Extras folder containing demo programs and tools into the “Python 2.7” subfolder of the system Applications folder, and puts the underlying machinery into the folder (MacHD)/Library/Frameworks/Python.framework “

This is the exact folder that the PyDev installation requires. The funny thing is that my terminal python command is automatically linked to the updated python already. So I will just click on the “Update Shell Profile” command anyway. Now let’s go back to the interpreter configuration, my settings are:

Interpreter Name: Python 2.7
Interpreter Executable: /Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7

And this is what I get for my PYTHONPATH:

Screen Shot 2012-12-27 at 5.08.31 PM

Clicking Apply gives no error. So let’s continue to Create a Python Project!

Following instructions to set up a first project is easy. Next, we created a source folder in the project. Then we create a package within the source folder:

Screen Shot 2012-12-27 at 5.23.48 PM


Then we follow the tutorial to create a pyDev module. It is easy. Note here that for mac “control + space” also works to prompt the code completion for python.

Finally, let’s run a program from within eclipse. Copy and paste the code given into your example.py. Now use the Run > Run As > Python Run to run the program. Success!

Screen Shot 2012-12-27 at 5.29.24 PM

Entering the debug mode for mac is just clicking on “debug” then you can click “step into” or other buttons to debug your code. The shortcut can be seen when you scroll over the buttons.

Screen Shot 2012-12-27 at 5.32.30 PM


To return to PyDev perspective just click on “PyDev” on the top right corner.

And boys that concludes this tutorial. Easy piecy.


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