Fix inaccurate TypeError messages when calling with insufficient arguments

[jferard]

BPO	39200
Nosy	@vstinner, @corona10, @pablogsal, @jferard
PRs	bpo-39200: Correct the error message for range() empty constructor #17813 bpo-39200: Correct the error message for min/max builtin function #17814 [3.8] bpo-39200: Correct the error message for range() empty constructor (GH-17813) #17940 [3.8] bpo-39200: Correct the error message for min/max builtin function (GH-17814) #17941 [3.7] bpo-39200: Correct the error message for range() empty constructor (GH-17813) #17942 [3.7] bpo-39200: Correct the error message for min/max builtin function (GH-17814) #17943

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2020-01-15.21:52:16.646>
created_at = <Date 2020-01-03.14:27:51.103>
labels = ['interpreter-core', 'type-feature', '3.9']
title = 'Fix inaccurate TypeError messages when calling with insufficient arguments'
updated_at = <Date 2020-01-16.00:48:35.445>
user = 'https://github.com/jferard'

bugs.python.org fields:

activity = <Date 2020-01-16.00:48:35.445>
actor = 'corona10'
assignee = 'none'
closed = True
closed_date = <Date 2020-01-15.21:52:16.646>
closer = 'vstinner'
components = ['Interpreter Core']
creation = <Date 2020-01-03.14:27:51.103>
creator = 'jferard'
dependencies = []
files = []
hgrepos = []
issue_num = 39200
keywords = ['patch']
message_count = 11.0
messages = ['359236', '359243', '359363', '359423', '359736', '359737', '359738', '359739', '359776', '360081', '360091']
nosy_count = 4.0
nosy_names = ['vstinner', 'corona10', 'pablogsal', 'jferard']
pr_nums = ['17813', '17814', '17940', '17941', '17942', '17943']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue39200'
versions = ['Python 3.9']

[jferard]

When passing no argument to range, the error message states that (exactly) one argument is expected.

Actual:

    Python 3.9.0a0 (heads/master:d395209653, Jan  3 2020, 11:37:03)
    [GCC 7.4.0] on linux
    Type "help", "copyright", "credits" or "license" for more information.
    >>> range()
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    TypeError: range expected 1 argument, got 0

Expected message:

TypeError: range expected at least 1 argument, got 0

(See for instance:

    >>> eval()
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    TypeError: eval expected at least 1 argument, got 0
)

[corona10]

I noticed that min/max builtin function also has the same problem.

For example, PyPy raise TypeError as
TypeError: max() expects at least one argument.

PR-17814 is an update patch for this.

I suggest changing the title to be "Fix inaccurate TypeError messages when calling with insufficient arguments"

[pablogsal]

New changeset 4b66fa6 by Pablo Galindo in branch 'master':
bpo-39200: Correct the error message for range() empty constructor (GH-17813)
4b66fa6