+0

Questions:

1. What's the use case for partial having __name__?
2. Does this imply it should have __qualname__ as well?
3. What name would be given to (an inherently anonymous) lambda?

Notes:

1. I would prefer __name__ to be more qualifying like its repr (e.g. partial(foo, "x") → "<partial foo>")


On Mon, 2022-08-29 at 21:31 -0700, Charles Machalow wrote:
Hey folks,

I propose adding __name__ to functools.partial.

>>> get_name = functools.partial(input, "name: ")
>>> get_name()
name: hi
'hi'
>>> get_name.__name__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'functools.partial' object has no attribute '__name__'
>>> get_name.func
<built-in function input>
>>> get_name.func.__name__
'input'


We could set __name__ based off of partial.func.__name__ or we could try to set it to something like 'partial calling func.__name__'

If the callable doesn't have a name, we could fall back to a None __name__ or set it to something generic. 

Even lambdas have __name__ set:

>>> l = lambda: input('name: ')
>>> l.__name__
'<lambda>'


This proposal makes __name__ on partial objects more useful than the current behavior of __name__ on lambda objects as well. We could port over similar functionality to lambda if we'd like.

- Charlie Scott Machalow
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