🔒 Syntax clarification

[vague stream]

@brittle drift

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[brittle drift]

How does the loop while cur: behave

[dense schooner]

Just like any other while loop. While the condition (in this case cur) is True (or evaluates to True), then the loop executes.

[brittle drift]

so the loop only works for cur == True and not other datatypes?

[autumn zinc]

https://stackoverflow.com/a/39984051

[dense schooner]

Don't understand. Any data type. For example an integer will evaluate to False if it is zero, True otherwise. An empty string or list will evaluate to False, True otherwise.

[autumn zinc]

this is a good explanation

[grim light]

Just imagine that Python will always translate
if condition:
to
if bool(condition):

You can check what bool(condition) is if you are unsure

Does that make sense? @brittle drift

[brittle drift]

This makes sense

[brittle drift]

I was wondering how an individual element - cur, would return a bool like how any condition does

[grim light]

Because it is simply cast to a bool with bool()

And the rule on when this evaluates to True or False depends per class

ints and floats evaluate to False for 0 and 0.0

[dense schooner]

It does not have to be a Bool. It only has to be interpreted as a Bool.

[grim light]

A str when it is empty etc.

[brittle drift]

Right

Thanks

[vague stream]

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