Of course I can overload >> in Python, but I cannot foul up output stream state because it doesn't exist. Formally there is little difference between C++ and Python operator overloading and both languages have good syntax for it, but C++ has many rough edges in the standard library and intrinsic complications that can make operator overloading much more interesting in practice. For instance, overload resolution is rarely trivial.
It is only one pip install away, if anyone bothers to make on such set of overloads.
People don't though. That's the big difference. There's a certain taste in the Python community.