Author xtreak
Recipients Camion, rhettinger, scoder, xtreak
Date 2019-03-31.06:18:04
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
Is this about sum not accepting start as keyword argument? It's fixed with issue34637. The help function in the report is that start could only be a positional argument with start appearing before '/' in "sum(iterable, start=0, /)" . This has been changed in 3.8 to below signature.

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.

$ python3.7
Python 3.7.1rc2 (v3.7.1rc2:6c06ef7dc3, Oct 13 2018, 05:10:29)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> sum(range(10), start=10)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: sum() takes no keyword arguments

# 3.8

$ ./python.exe
Python 3.8.0a3+ (heads/master:7444daada1, Mar 30 2019, 20:27:47)
[Clang 7.0.2 (clang-700.1.81)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> sum(range(10), start=10)
Date User Action Args
2019-03-31 06:18:04xtreaksetrecipients: + xtreak, rhettinger, scoder, Camion
2019-03-31 06:18:04xtreaksetmessageid: <>
2019-03-31 06:18:04xtreaklinkissue36491 messages
2019-03-31 06:18:04xtreakcreate