Getting a strange result when comparing 2 dictionaries in python

Question

So I have a pair of dictionaries in python: (both have exactly the same keys)

defaults = {'ToAlpha': 4, 'ToRed': 4, 'ToGreen': 4, 'ToBlue': 4,}

bridged = {'ToAlpha': 3, 'ToRed': 0, 'ToGreen': 1, 'ToBlue': 2,}

When I iterate through one of the dictionaries I do a quick check to see if the other dict has the same key, if it does then print it.

for key, value in defaults.iteritems():
    if bridged.get(key):
        print key

What I would expect to see is:

ToAlpha
ToRed
ToGreen
ToBlue

But for some reason, 'ToRed' is not printed. I must be missing something really simple here, but have no idea might might be causing this.

bridged.get('ToRed')

and

defaults.get('ToRed')

both work independently, but when iterated through the loop... Nothing!

Any idea's?

Answer 1

0 is false. Use in to check for containment.

if key in bridged: