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Why does using the 'or' operator give different results in this case? Why must I write the day.weekday() twice rather than just == 5 or 6

This is the option that works

if day.weekday() == 5 or day.weekday() == 6:

This is the option that gives a different result

if day.weekday() == 5 or 6:
furas
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Haython
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2 Answers2

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Or statements work as such:

if (condition) or (condition):

By saying:

if day.weekday() == 5 or 6:

The code thinks that you are implying that 6 is a condition, which if you are trying to print something if it's a Saturday (since saturday is the 6th day of the week), you won't get anything printed. Hope this helps, leave a comment if it doesn't, or you need additional help.

1BL1ZZARD
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It gives a different result because "day.weekday() == 5" and "6" are being evaluated separately. It doesn't give you an error because any number that is not 0 evaluates to "True".

The better way to write this would be:

if day.weekday() in (5, 6):
JWCompDev
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  • what is the 6 being evaluated as? – Haython Mar 16 '22 at 00:58
  • basically the 6 is just being converted to a boolean. Any number that is 0 will be False. Any number that is not 0 will be True. So that's why if you want to check multiple values you have to use in. Putting the 5 and 6 in parentheses puts it in a tuple so calling in checks if the value of day.weekday() is in the tuple. – JWCompDev Mar 16 '22 at 01:04
  • No problem, glad to help – JWCompDev Mar 17 '22 at 02:21