Comparing Bool values in Python

Question

If 2 of 3 Values are True then Print true, if not Print false.

output = ""
w1 = input() 
w2 = input() 
w3 = input() 

output = w1 and w2 or w1 and w3 or w2 and w3

print(output)

I dont understand why this code prints False when w1 and w3 are true.

This is working but i dont understand the deference

output = ""
w1 = not input() == "False"
w2 = not input() == "False"
w3 = not input() == "False"

output = w1 and w2 or w1 and w3 or w2 and w3

print(output)

The string `"False"` will not evaluate falsey, the only string that evaluates falsey is the empty string `''`. — Cory Kramer, Oct 28 '21 at 12:34
`input` returns a string. A string is only *falsey* when it's empty. Any other string is *truthy*. `"False"` is *truthy*. — deceze, Oct 28 '21 at 12:34
`from collections import Counter` `output = Counter([w1, w2, w3])['True'] >= 2`… — deceze, Oct 28 '21 at 12:35
Also, you should do `input() != 'False'` instead of negating a positive comparison… — deceze, Oct 28 '21 at 12:36
Does this answer your question? [How to test multiple variables against a single value?](https://stackoverflow.com/questions/15112125/how-to-test-multiple-variables-against-a-single-value) — 0x5453, Oct 28 '21 at 12:38

AziMez · Answer 1 · 2021-10-28T13:03:47.020

0

Try this one. In this case, w1,w2,w3 will be Boolean.

w1= input() =='True'
w2= input() =='True'
w3= input() =='True'

output = ((w1 and w2) or (w1 and w3) or (w2 and w3)) and (not (w1 and w2 and w3))

print(output)

edited Oct 28 '21 at 13:03

answered Oct 28 '21 at 12:47

AziMez

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what if all 3 of the values are true? – Mahrkeenerh Oct 28 '21 at 12:49
1

yeah, and op said, that they want `True` if 2 of them are `True`, otherwise `False` – Mahrkeenerh Oct 28 '21 at 12:54
Thank you @Mahrkeenerh. Sorry, I didn't notice this part. I updated the code. – AziMez Oct 28 '21 at 13:05

score 0 · Answer 2 · answered Oct 28 '21 at 12:54

In case you want to have True output, when exactly 2 of the 3 variables are "True" (so all 3 variables being "True" will result in False), use:

w1 = 1 if input() == "True" else 0
w2 = 1 if input() == "True" else 0
w3 = 1 if input() == "True" else 0

output = True if w1 + w2 + w3 == 2 else False

Comparing Bool values in Python

2 Answers2