Description

assignee = None
closed_at = None
created_at = <Date 2021-01-17.17:14:51.665>
labels = ['type-bug', '3.8', '3.9', '3.10', '3.7', 'library']
title = 'email: ValueError in get_section when parsing header with non-ASCII digit'
updated_at = <Date 2021-01-17.17:14:51.665>
user = 'https://github.com/The-Compiler'

activity = <Date 2021-01-17.17:14:51.665>
actor = 'The Compiler'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-01-17.17:14:51.665>
creator = 'The Compiler'
dependencies = []
files = []
hgrepos = []
issue_num = 42946
keywords = []
message_count = 1.0
messages = ['385162']
nosy_count = 4.0
nosy_names = ['barry', 'r.david.murray', 'maxking', 'The Compiler']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue42946'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8', 'Python 3.9', 'Python 3.10']

Activity

1. The-Compiler commented on Jan 17, 2021

   

   The-Compilermannequin

   on Jan 17, 2021

   MannequinAuthor

   More actions

   Found mostly by accident:

   >>> import email.headerregistry
   >>> reg = email.headerregistry.HeaderRegistry()
   >>> h = reg('Content-Disposition', 'inline; 0*²')
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
     File "/usr/lib/python3.10/email/headerregistry.py", line 608, in __call__
       return self[name](name, value)
     File "/usr/lib/python3.10/email/headerregistry.py", line 196, in __new__
       cls.parse(value, kwds)
     File "/usr/lib/python3.10/email/headerregistry.py", line 452, in parse
       kwds['parse_tree'] = parse_tree = cls.value_parser(value)
     File "/usr/lib/python3.10/email/_header_value_parser.py", line 2705, in parse_content_disposition_header
       disp_header.append(parse_mime_parameters(value[1:]))
     File "/usr/lib/python3.10/email/_header_value_parser.py", line 2569, in parse_mime_parameters
       token, value = get_parameter(value)
     File "/usr/lib/python3.10/email/_header_value_parser.py", line 2431, in get_parameter
       token, value = get_section(value)
     File "/usr/lib/python3.10/email/_header_value_parser.py", line 2384, in get_section
       section.number = int(digits)
   ValueError: invalid literal for int() with base 10: '²'

   This probably happens because:

   >>> '²'.isdigit()
   True
   >>> int('²')
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   ValueError: invalid literal for int() with base 10: '²'
2. The-Compiler

   added

   3.7 (EOL)end of lifeend of life

   3.8 (EOL)end of lifeend of life

   3.9 (EOL)end of lifeend of life

   3.10 (EOL)end of lifeend of life

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Jan 17, 2021
3. ezio-melotti

   transferred this issue fromon Apr 10, 2022
4. serhiy-storchaka

   added

   topic-email

   on May 21, 2022
5. The-Compiler

   added a commit that references this issue on Jun 16, 2022

   Fix coverage pragmas for Content-Disposition parsing

   9cc91a0
6. StanFromIreland

   removed

   3.10 (EOL)end of lifeend of life

   3.9 (EOL)end of lifeend of life

   3.8 (EOL)end of lifeend of life

   3.7 (EOL)end of lifeend of life

   on Jul 20, 2025

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