python / python/cpython

Octal byte literals with a decimal value > 255 are silently truncated

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3.7 (EOL) interpreter-core OS-windows type-bug
Dominant language
Python
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Forks
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Description

BPO 34620
Nosy @pfmoore, @tjguk, @zware, @zooba, @mr-nfamous

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 = None
created_at = <Date 2018-09-10.11:57:43.411>
labels = ['interpreter-core', 'type-bug', '3.7', 'OS-windows']
title = 'Octal byte literals with a decimal value > 255 are silently truncated'
updated_at = <Date 2018-09-10.11:57:43.411>
user = 'https://github.com/mr-nfamous'

bugs.python.org fields:

activity = <Date 2018-09-10.11:57:43.411>
actor = 'bup'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core', 'Windows']
creation = <Date 2018-09-10.11:57:43.411>
creator = 'bup'
dependencies = []
files = []
hgrepos = []
issue_num = 34620
keywords = []
message_count = 1.0
messages = ['324918']
nosy_count = 5.0
nosy_names = ['paul.moore', 'tim.golden', 'zach.ware', 'steve.dower', 'bup']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue34620'
versions = ['Python 3.6', 'Python 3.7']

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue provides no source file, test, or entry point to start from, so first locate the interpreter-core handling for octal byte literals and reproduce the Windows behavior described. Done means values greater than 255 are no longer silently truncated, with a regression test covering the corrected behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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