How to correctly use a boolean operator when analyzing a string in an if-statement? [duplicate]

Question

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Why does `a == b or c or d` always evaluate to True? (2 answers)

How to test multiple variables against a value? (24 answers)

Closed 5 years ago.

When I want to check if different part of a string is in a value, it doesn't work if I don't precise the value for each part of string (as in the if statement).

So I guess, the correct way is the one used in my elif statement.

Am I right ? Is there another way to check if some different words have been entered through a raw_input() ?

# we offer a choice
print "What do you want to do ?"
print "1. Listen to radio"
print "2. Turn on TV"

# we ask for an answer through raw_input()
choice = raw_input()

# we use an if-statement to print different strings for each choice provided
if "listen" or "radio" in choice:
    print "Let's listen some music !"
elif "turn" in choice or "TV" in choice:
    print "Let's watch a movie !"
else:
    print "I don't understand what you want to do"
    exit(0)

Thanks. I'm new to python (but I think it is pretty obvious)

Answer 1

This:

if "listen" or "radio" in choice:

should be:

if "listen" in choice.lower() or "radio" in choice.lower():

Etc.