TypeError: unsupported operand type(s) for |: 'PatternBase' and 'PatternBase'
Open
Nobody has claimed this yet.
- Dominant language
- Python
- Stars
- 250
- Forks
- 36
- PR merge metrics
- No merged PRs in 30d
Description
Hey, and thanks for this library! I have an issue declaring a union of different date/time format patterns.
This works:
MyDate = Union[DatePattern["%F"], DateTimePattern["%FT%T"], UTCDateTimePattern["%FT%TZ"]]
While this doesn't:
MyDate = DatePattern["%F"] | DateTimePattern["%FT%T"] | UTCDateTimePattern["%FT%TZ"]
I'm sticking with the former for now, even though the rest of the tooling doesn't really like it due to UP007.
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
Reproduce the failing PEP 604 union expression and compare it with the working typing.Union form shown in the issue. Trace the PatternBase subscription and union entry points in the repository; done means equivalent date/time patterns can be combined with | without raising this TypeError.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- developer-experience
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100