Misunderstanding with if?

Question

Python

hello
, I’m learning Python, I’m trying to solve problems on codewars, I
ran into a misunderstanding: on the course, 80% of the if () option: is not used, however, in turn, the usual if is used much more often and also works.
when solving problems, codevars swears at the absence of ():, although in some solutions the pure if option works

the question: for what situations are both options used and what does their writing depend on?

Answer 1

if waste

can you provide both examples.

for what situations are both options used and what determines their spelling?

It's written in Python books. For example, search for "Mark Lutz - Learning Python".
And if you don’t want to read books, then you will ask questions here for each line of code.
Python if( ): vs if:

Answer 2

1. correct if условие:
2. parentheses are needed to group expressions, if required
3. we are too lazy to guess what is wrong with you, show a specific example and a specific error