What does this python expression test? "if a|0:"

Question

What does this python expression test? "if a|0:"

Answer 1

Bitwise OR.

9: 0x1001
0: 0x0000
--------------
|: 0x1001

a|0 might be a bad example because x|0 always equals x.

25|48:

25: 0x011001
48: 0x110000
---------------------
|: 0x111001 (57)

Answer 2

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