map node inspection
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
- Issue type
- Feature
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- python
- Domain
- stream-processing
Research direction
Start by locating the map implementation and the code that invokes mapped functions. Review how function signatures and incoming nodes are represented, then determine which signatures can be inspected safely. Done means the supported mismatch cases are defined and warnings or errors are covered by tests, while args and kwargs limitations remain explicit.
Written by the indexing model from the issue text.
Description
It might be nice to have warnings/errors raised when the function signature inside map et.al. does not match the number of incoming nodes. This won't work in all cases, since a function could take in args and kwargs and there is nothing to inspect from that, but it might work in some interesting cases.
The main benefit is that one could know before running any data into the pipeline if it was going to work. Since we know exactly how much data is going to be used in the function call we can know if it matches up and will work.
This might help with one of the main issues with streamz, writing pipelines can be more difficult than writing a naked script/notebook.
- Dominant language
- Python
- Stars
- 1.3k
- Forks
- 149
- Avg merge
- 17h 39m
- Merged PRs (30d)
- 1
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.
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