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Using IDLE and Python version 2.7.3. Only when I start a new file it highlights for a few lines and then just stops after I press F5. So all my text becomes plain black.
If there are equally good/better command line and editor combinations out there, you may always suggest them.
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You can change the syntax highlighting theme by clicking Options > Configure IDLE and switching to the Highlights tab.
Syntax highlighting is an important feature of any IDE that highlights the syntax of the language that you're working in. This helps you visually distinguish between the different Python constructs and the data used in your code. Python IDLE allows you to fully customize the appearance of your Python code.
You can also open IDLE directly from your Python script file. Right click the file, then choose "Edit with IDLE". Rather than going through the "Run..." menu, learn to use F5 (on some systems, Fn + F5) to run your script. It's much quicker.
This happened to me too. Save it as .py (manually type .py in the document name), and the highlighting will come back.
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I usually have to save the file as .py before IDLE will do any syntax highlighting at all. Not sure why it would highlight for a few and then stop though. I've never had that happen.
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Check the key binding for the toggle-auto-coloring option under Options -> Configure IDLE -> Keys -> Custom Key Bindings. The default is Ctrl+/. This should allow you to turn the syntax highlighting back on. (You can't toggle it off though, heh)
Works for me on both IDLE 2.7 and IDLE 3.3.3.
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