sktime/sktime

[ENH] merge or vendor `tsbootstrap` into `sktime`

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#9,990 opened on Apr 23, 2026

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 (3 comments) (0 reactions) (0 assignees)Python (1,192 forks)batch import
enhancementgood first issuemodule:splitters&resamplers

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Description

tsbootstrap is currently unmaintained, and compatibility with sktime has broken due to an upper bound on scikit-base<0.11 in tsbootstrap - sktime 1.0 will require scikit-base 1.0.

While we investigate tsbootstrap, we need to find a solution that is at least temporary.

There are two options here:

  • library vendoring, in sktime.libs
  • direct merge, to sktime.bootstrap

It should be investigated which of the two is more advisable - a library vendor might be easier, and a direct merge might be worth doing in a second step, once the current status of tsbootstrap has been clarified.

Contributor guide

Research direction
Investigate the pros and cons of vendoring `tsbootstrap` in `sktime/libs` vs merging into `sktime/bootstrap`, and implement the chosen approach.
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.
1-2 days
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
GitPython
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50