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If conditions
Hy guys, I just wanted to ask why I can't use the If statement like this: if a == "Hello" or "Good morning" or ... : Instead of it I have to write: if a == "Hello" or a == "Good morning" or a == ... : Do u know any shorter ways to do the same?
11 odpowiedzi
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Wait, there is a way!
What you can ask for (in Python at least) is this:
if a in ('Hello', 'Good Morning'):
...
Like this you ask if a's value is one of the elements of that tuple.
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Everything that evaluates as True is already a complete condition.
'Good Morning' (since it is no empty string) is True, so if you write like you said, it actually means this:
if a=='Hello' or ('Good Morning' evaluates as True (which it does))...
You see the issue?
So you have to write a=='Good Morning', because that's what you want to check.
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No, not really - your interpreter needs it this dumb. ;'D
If you wrote a==(b or c), it would again mean something different.
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Hi! I always asked the same question, thinking that somehow it'll be like maths, Bool's Algebra, it goes like this:
if a == ("Hello" or "Good morning" or ...)
But unfortunately, that doesn't work, so you can write them all in one line or just divide them into different elif statements.
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do u know any shorter variants?
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Ok, thank u guys!!
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woow!!!
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Thanks
0
Genius!
0
Array is the key
0
:) Anytime!
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