what is 0o10?

Question

a_int=10
b_int=3
c_int=2

print(0o10+c_int)

Answer 1

Starting a number with a zero marks it as octal in Python 2.
This has been recognized as confusing, surprising and also inconsistent, as starting with 0x will mark it as hexadecimal.
Therefore, in Python 3, starting with 0 is invalid, and you get octal by starting with 0o.
You can also start with 0b to mark it as binary.

>>> 10
10
>>> 0x10
16
>>> 0o10
8
>>> 0b10
2
>>> 010
File "<stdin>", line 1
010
^
SyntaxError: invalid token

0x, 0o and 0b also works in Python 2.6 and Python 2.7.

Answer 2

Thanks,sir