New submission from Camion <[email protected]>:
>>> help(sum)
Help on built-in function sum in module builtins:
sum(iterable, start=0, /)
Return the sum of a 'start' value (default: 0) plus an iterable of numbers
When the iterable is empty, return the start value.
This function is intended specifically for use with numeric values and may
reject non-numeric types.
>>> sum([1, 2, 3], start=3)
Traceback (most recent call last):
File "<pyshell#11>", line 1, in <module>
sum([1, 2, 3], start=3)
TypeError: sum() takes no keyword arguments
By the way, it is very annoying that the start value is not available, because
it hampers the possibility to use sum with things like vectors.
----------
components: Interpreter Core
messages: 339245
nosy: Camion
priority: normal
severity: normal
status: open
title: sum function's start optional parameter documented in help but not
implemented
type: behavior
versions: Python 3.5
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Python tracker <[email protected]>
<https://bugs.python.org/issue36491>
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