Why 4 not printed (not weird)?

Question

https://code.sololearn.com/c3zqCrp5XGXZ/?ref=app

Answer 1

replace & by "and", four spaces before print in line 5,9

Answer 2

It's printing "Weird" because of operator precedence, not the missing parentheses.

1. "N%2!=0" is False as 4==2*2+0.

2. "N%2==0 & N in range(2,6)" is treated as "(N%2==0 & N) in range(2,6)" because "bitwise AND (&)" has higher precedence than "in".

"N%2==0 & N" equals "1 & 4" equals 0, which is not in range(2,6).

3. Same goes for range(6,21).

4. "N>20" is clearly False.

5. "else" part is executed and "Weird" is printed.

https://docs.python.org/3/reference/expressions.html#operator-precedence

Answer 3

Pulkit Kamboj Although they may increase readability, parentheses are not necessary around if/elif/else statements.

Take a look at the codes in the documentation.
https://docs.python.org/3/tutorial/controlflow.html