[issue39629] inspect.signature fails on math.hypot

[Raymond Hettinger]

Raymond Hettinger  added the comment:

This isn't a bug.  It is a known limitation of the ArgumentClinic that it 
cannot currently describe functions with *args.   That and other limitations is 
also why we don't have signatures for min() max() range() etc.

--
nosy: +rhettinger
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue39629] inspect.signature fails on math.hypot

[Mark Dickinson]

Change by Mark Dickinson :


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nosy: +mark.dickinson

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[issue39629] inspect.signature fails on math.hypot

[Eric Fahlgren]

New submission from Eric Fahlgren :

Python 3.8's new math.hypot function also appears to suffer from the same issue 
as math.log:

>>> import math, inspect
>>> inspect.signature(math.hypot)
Traceback (most recent call last):
  File "", line 1, in 
  File "C:\Program Files\Python38\lib\inspect.py", line 3093, in signature
return Signature.from_callable(obj, follow_wrapped=follow_wrapped)
  File "C:\Program Files\Python38\lib\inspect.py", line 2842, in from_callable
return _signature_from_callable(obj, sigcls=cls,
  File "C:\Program Files\Python38\lib\inspect.py", line 2296, in 
_signature_from_callable
return _signature_from_builtin(sigcls, obj,
  File "C:\Program Files\Python38\lib\inspect.py", line 2107, in 
_signature_from_builtin
raise ValueError("no signature found for builtin {!r}".format(func))
ValueError: no signature found for builtin 

Possibly related to issue29299?

--
components: Library (Lib)
messages: 361966
nosy: eric.fahlgren
priority: normal
severity: normal
status: open
title: inspect.signature fails on math.hypot
type: behavior
versions: Python 3.8

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