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I feel like I've somehow misunderstood the fundamental concept of how the 'or' keyword works in Python.

I have the following code: 

word = "aarrgh"

print(*[x for x in word if x == "a" or "r"])

and this is giving me:

a a r r g h

The same thing happens when using == or !=.

What am I missing here? I cant find anything online explaining this so sorry if this is something obvious.

martineau
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Xexizy
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1 Answers1

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Your problem isn't specifically related to the comprehension. It's a question of how or and == works. x == "a" or "r" means (x == "a") or "r". You should use one of these instead.

print(*[x for x in word if x in ["a", "r"]])
print(*[x for x in word if x == "a" or x == "r"])
recursive
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