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Misleading error message for except with missing parens (3.10.a5) #87315

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aroberge mannequin opened this issue Feb 6, 2021 · 3 comments
Closed

Misleading error message for except with missing parens (3.10.a5) #87315

aroberge mannequin opened this issue Feb 6, 2021 · 3 comments
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3.10 only security fixes type-bug An unexpected behavior, bug, or error

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@aroberge
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aroberge mannequin commented Feb 6, 2021

BPO 43149
Nosy @aroberge, @lysnikolaou, @pablogsal, @miss-islington
PRs
  • bpo-43149: Improve error message for exception group without parentheses #24467
  • bpo-43149: Correct the syntax error message for multiple exception types #25996
  • [3.10] bpo-43149: Correct the syntax error message for multiple exception types (GH-25996) #25997
    		•

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

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    GitHub fields:

    assignee = None
closed_at = <Date 2021-02-07.18:42:41.526>
created_at = <Date 2021-02-06.22:54:08.266>
labels = ['type-bug', '3.10']
title = 'Misleading error message for except with missing parens (3.10.a5)'
updated_at = <Date 2021-05-09.21:14:08.771>
user = 'https://github.com/aroberge'

    bugs.python.org fields:

    activity = <Date 2021-05-09.21:14:08.771>
actor = 'pablogsal'
assignee = 'none'
closed = True
closed_date = <Date 2021-02-07.18:42:41.526>
closer = 'pablogsal'
components = []
creation = <Date 2021-02-06.22:54:08.266>
creator = 'aroberge'
dependencies = []
files = []
hgrepos = []
issue_num = 43149
keywords = ['patch']
message_count = 3.0
messages = ['386570', '386601', '393337']
nosy_count = 4.0
nosy_names = ['aroberge', 'lys.nikolaou', 'pablogsal', 'miss-islington']
pr_nums = ['24467', '25996', '25997']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue43149'
versions = ['Python 3.10']
    @aroberge
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    aroberge mannequin commented Feb 6, 2021

    The following:

    try:
    pass
    except ValueError, NameError as err:
    pass

    results in:

        except ValueError, NameError as err:
                     ^
SyntaxError: expected ':'

    However, what is missing here are some parentheses surrounding the exception types.

    @aroberge aroberge mannequin added 3.10 only security fixes type-bug An unexpected behavior, bug, or error labels Feb 6, 2021
    @pablogsal
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    New changeset 206cbda by Pablo Galindo in branch 'master':
    bpo-43149: Improve error message for exception group without parentheses (GH-24467)
    206cbda

    @pablogsal
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    New changeset 9a0e65c by Miss Islington (bot) in branch '3.10':
    bpo-43149: Correct the syntax error message for multiple exception types (GH-25996) #70185)
    9a0e65c

    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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