langgenius/dify

[Refactor/Chore] if isinstance to match case

Closed

#35,902 opened on May 7, 2026

View on GitHubContributor guide
 (9 comments) (1 reaction) (3 assignees)TypeScript (22,210 forks)batch import
good first issueno-issue-activity🙏 help wanted

Repository metrics

Stars
 (141,412 stars)
PR merge metrics
 (Avg merge 1d 21h) (579 merged PRs in 30d)

Description

Self Checks

  • I have read the Contributing Guide and Language Policy.
  • This is only for refactors or chores; if you would like to ask a question, please head to Discussions.
  • I have searched for existing issues search for existing issues, including closed ones.
  • I confirm that I am using English to submit this report, otherwise it will be closed.
  • 【中文用户 & Non English User】请使用英语提交，否则会被关闭 ：）
  • Please do not modify this template :) and fill in all the required fields.

Description

change to match case can

  1. in case missing branch
  2. better semantic meaning

Motivation

No response

Additional Context

No response

Contributor guide

Research direction
Search for all `if isinstance` statements in the codebase and replace them with `match`/`case` for better readability and safety.
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.
1
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
Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
90