On: The unknown features of Python's `operator` module

[blumomo]

In this article, some listed operators are:

    operator.length_hint
    operator.itemgetter
    operator.countOf

What's the (historical?) reason the operator module uses different casing standards?

[O5vYtytb → blumomo]

The operator module is very old: https://github.com/python/cpython/blob/ea4d3f0804a3aad5afaa6...

PEP8 was introduced in 2001: https://www.python.org/dev/peps/pep-0008/

[wirrbel → blumomo]

typically in CPython its just a sign that the code is fairly old, or at times (as with the unittest module), that an API was ported from CamlCase language at least partially.