What does the "|" symbol mean?

Question

def f(m,n):
return m|n
print(f(10,20))

Output:
30

Thank you for your help :)

Answer 1

Bitwise OR
https://code.sololearn.com/cbUZQvD9le8A/?ref=app

Answer 2

| means binary operation OR.
10 in binary is 1010
20 in binary is 10100
1010 | 10100 = 11110 (30)

Make OR on each bit row:
01010
10100
11110

Answer 3

I understand perfectly now! Thank you!