🔒 I need help

[mellow flare]

Why if I write in a while True:

if var1 in var2 or var3:
  print("hello world")  
  break

even if var1 (which is given by a input) isn't in var 2 or 3 it still print.
PS: I can't send a screen bc the var and words are in italian so you coulden't understand

[jagged leaf]

@mellow flare

Python help channel opened

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[visual fjord]

!or-gotcha

[jagged leaf]

The or-gotcha

When checking if something is equal to one thing or another, you might think that this is possible:

# Incorrect...
if favorite_fruit == 'grapefruit' or 'lemon':
    print("That's a weird favorite fruit to have.")

While this makes sense in English, it may not behave the way you would expect. In Python, you should have complete instructions on both sides of the logical operator.

So, if you want to check if something is equal to one thing or another, there are two common ways:

# Like this...
if favorite_fruit == 'grapefruit' or favorite_fruit == 'lemon':
    print("That's a weird favorite fruit to have.")

# ...or like this.
if favorite_fruit in ('grapefruit', 'lemon'):
    print("That's a weird favorite fruit to have.")

[visual fjord]

this is why 👆

[mellow flare]

mhhh

[visual fjord]

you see how the syntax after in is different?

[mellow flare]

yea

[visual fjord]

because how your just checking if var3 is falsy (like an empty string, and empty list or tuple or something like that)

[mellow flare]

thanks so much I tried it and it works

I'm new to programming so i'm still trying to understand basic python

[visual fjord]

your initial code would read like this to the python interpreter:

if (var1 in var2) or var3:

[visual fjord]

that's all fine, we've all been there at one point

[mellow flare]

i think the tutorial was wrong about that 🙂

[outer gulch]

which tutorial

[mellow flare]

the one i was watching

[visual fjord]

and welcome to the wonderful world of coding 🙂

[mellow flare]

I've done the most of the things but this wasn't working and i watched a tutorial

ok bye i'll close the thread

tysm @visual fjord

!close

[jagged leaf]

Python help channel closed with !close

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