langgenius/dify

[Refactor/Chore] if isinstance to match case

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#35902 opened on May 7, 2026

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 (7 comments) (1 reaction) (3 assignees)TypeScript (141,412 stars) (22,210 forks)batch import
good first issue🙏 help wanted

Description

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Description

change to match case can

  1. in case missing branch
  2. better semantic meaning

Motivation

No response

Additional Context

No response

Contributor guide

Tech stack
python
Domain
backend
Issue type
refactor
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.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Pythonpattern matching (match case)
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
85
Research direction
Identify Python files in the repository that use `if isinstance(...)` statements. Convert each to `match case` syntax, ensuring all branches are covered. Run existing tests to verify no regression. Since no specific files are mentioned, start by searching the codebase for `isinstance` calls and assess if pattern matching can be applied.