Set Comprehensions Don't Work On Pydev (python)

{x for x in range(10)} works perfectly on IDLE, but when I try this in eclipse (with Pydev plugin) I get a syntax error: Undefined variable: x Is it because Pydev doesn't suppor

Solution 1:

This is a bug in PyDev; in this case ignore the editor's warning and execute the code: it will work.

I get this a lot, PyDev isn't perfect but it's good enough!

Solution 2:

Make sure that Pydev is configured to use Python 3.

Solution 3:

You can find out which version of Python you are using with

import sys
sys.stdout.write( sys.version )