Why does Python 3 allow “00” as a literal for 0 but not allow “01” as a literal for 1?

Question

Why does Python 3 allow \"00\" as a literal for 0 but not allow \"01\" as a literal for 1? Is there a good reason? This inconsistency baffles me. (And we\'re talking about P

Answer 1

Python2 used the leading zero to specify octal numbers:

>>> 010
8

To avoid this (misleading?) behaviour, Python3 requires explicit prefixes 0b, 0o, 0x:

>>> 0o10
8