nteract/papermill

s3 handler decode exception

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#820 opened on Aug 6, 2025

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Description

🐛 Bug

https://github.com/nteract/papermill/blob/53847310586b74fdb2763fe333ab99babee367ed/papermill/s3.py#L320C21-L320C73

This bug happens because undecoded is a bytes object, but s.decode(encoding) returns a str. this wll causes a TypeError

Contributor guide

Research direction
The bug is in papermill/s3.py at line 320. The variable 'undecoded' is a bytes object, and calling decode(encoding) returns a str, causing a TypeError. The fix likely involves either using .decode() properly or handling the bytes object differently. Check the surrounding code for context.
Tech stack
python
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
basic python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80