Eclipse is very useful but configuring it can sometimes be a pain. One change I always make is to change the colour used to highlight occurrences. Occurrence highlighting occurs when you put the cursor in a variable – all occurrences of that variable are highlighted. Unfortunately, the default colour can be hard to see on the side bar so I like to change it from very pale yellow to bright green. To do this: Window > Preferences > General > Editors > Text Editors > Annotations (which is pretty easy to forget). Then change the colour for Occurrences (PyDev). Easy when you know where the configuration is hidden :-).