ermakov-oleg / attributes-doc

Hacky implementation of PEP 224

attributes-doc

Hacky implementation of PEP 224.

Usage

This package provides the following functions:

• attributes_doc
• get_attributes_doc
• enum_doc
• get_doc

Decorator attributes_doc

This function is a class decorator, and using it on a class will set class attributes called __doc_ATTRNAME__ for each existing attribute.

from attributes_doc import attributes_doc

@attributes_doc
class Foo:
    bar = 1
    """This is the docstring for the bar attribute.

    It will be stored in `Foo.__doc_bar__` and will be accessible at runtime.
    """

    baz = 2
    """This is the docstring for the baz attribute."""


print(Foo.__doc_bar__)
print(getattr(Foo, "__doc_baz__"))

Function get_attributes_doc

This function will return a dictionary with the docstrings for all attributes of a class without setting them.

from attributes_doc import get_attributes_doc

class Goo:
    """This class doesn't use attributes_doc and we don't want to modify it at all."""
    bar = 1
    """This is the docstring for the bar attribute."""
    baz = 2
    """This is the docstring for the baz attribute."""

docs = get_attributes_doc(Goo)
print(docs["bar"])
print(docs["baz"])

Decorator enum_doc

This is also a class decorator, but it is intended for Enum classes. Instead of setting one doc attribute per attribute to the containing class, it will set the __doc__ attribute for each enum value.

from attributes_doc import enum_doc
from enum import Enum

@enum_doc
class Foo(Enum):
    bar = 1
    """This is the docstring for the bar attribute."""
    baz = 2
    """This is the docstring for the baz attribute."""

print(Foo.bar.__doc__)

Function get_doc

This function will return the docstring of an attribute of a class.

from attributes_doc import get_doc

print(get_doc(Foo, "baz")) # Instead of getattr(Foo, "__doc_baz__") above