using or operators with and without parentheses [duplicate]

using or operators with and without parentheses [duplicate]



This question already has an answer here:



I'm fairly new to python/programming in general and I would like to know the affect (if any) that parentheses have when using the 'or' operator.



For example what's the difference between this:


if (x or y or z) == 3:
return True



this:


if x or y or z == 3:
return True



and this:


if x == 3 or y == 3 or z == 3:
return True



I have tried using each line of code and have seen varied results making it difficult to identify what each line does. Any help would be greatly appreciated-thanks.



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