biolab/orange3-single-cell

Single Cell Datasets: crashes on latest master

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#383 opened on Mar 2, 2021

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Description

Describe the bug After https://github.com/biolab/orange3/pull/5279, Single Cell Datasets crashes.

To Reproduce Steps to reproduce the behavior:

  1. Be on the latest Orange master.
  2. Open Single Cell Datasets.

Expected behavior No crash.

Desktop (please complete the following information):

  • OS: macOS
  • Python Version: 3.8
  • Orange Version: 3.28.dev
  • Add-on Version: 1.2.0 (which ever is the latest)

Additional context

-------------------------- AttributeError Exception ---------------------------
Traceback (most recent call last):
  File "/Users/ajda/orange/orange3/Orange/widgets/data/owdatasets.py", line 386, in __set_index
    scw(self.Header.variables, 20 + width("1000000"))
AttributeError: '_header_index' object has no attribute 'variables'
-------------------------------------------------------------------------------

Contributor guide

Research direction
Investigate the AttributeError on ` header index.variables`. Review PR #5279 to see how the header index API changed, then figure out the correct way to access the variable list in the updated Orange version.
Tech stack
python
Domain
desktopbioinformatics
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.
1-3 hours
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
GitPython
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70