Attaching issue8983.diff patch. I am a bit unsure about __init__ docstring change:
1. Are cases when help(type(x)) differs from help(x) important enough to distinguish in docstring?
2. Do we need a default docstring on __init__ at all? If so, should we keep a reference to class doc which may not be correct? See issue8973.
3. Why __init__ has a default docstring but __new__ and __del__ don't?
4. There are some other inconsistencies in type docstrings. E.g., "__subclasschck__ -> check if an class is a subclass" (misspelling and and missing ()).