Add thread-safe `copy()`
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- Dominant language
- Python
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Description
Is your feature request related to a problem?
A new option for Dataset and DataArray .copy() function. Something between deep=True and deep=False.
https://github.com/pydata/xarray/issues/9836 here it was identified that everything in xarray is threadsafe, but the PandasIndex is not.
A shallow copy of the data, variables, coordinates + deep copy of the index is required for the fastest and most efficient thread-safe copy
Describe the solution you'd like
Add .copy(deep='threadsafe') or similar.
Describe alternatives you've considered
No response
Additional context
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the existing Dataset and DataArray copy APIs and the PandasIndex thread-safety discussion linked in the issue. The work is done when a copy mode provides shallow data, variables, and coordinates while deep-copying the index, with the chosen option and its behavior documented and tested.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- pandas, python
- Domain
- data
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100