The operator module is very old: https://github.com/python/cpython/blob/ea4d3f0804a3aad5afaa66a91012325e2067a0af/Modules/operator.c https://github.com/python/cp

The operator module is very old: https://github.com/python/cpython/blob/ea4d3f0804a3aad5afaa66a91012325e2067a0af/Modules/operator.c https://github.com/python/cpython/blob/ea4d3f0804a3aad5afaa6... PEP8 was introduced in 2001: https://www.python.org/dev/peps/pep-0008/ https://www.python.org/dev/peps/pep-0008/