🥫 Cans¶
Simple, functional, composable containers like Maybe.
Properly typed and supports pattern matching on Python 3.10+.
Inspired by the containers in the Rust standard library.
Quickstart¶
>>> from cans import Just, Nothing, Maybe
>>> greeting: Maybe[str] = Just("Hello")
...
>>> def first(m: list[str]) -> Maybe[str]:
... return Just(m[0]) if m else Nothing()
...
>>> first(["howdy", "hi", "hello"]).map(str.title).unwrap()
"Howdy"
...
>>> # Python 3.10+ only
>>> match greeting:
... case Just(n):
... print(f"{greeting} world!")
... case Nothing():
... print("Hi world!")
Hello world!
Among the supported methods are flatmap, filter, zip,
as well as the relevant
collection APIs.
See the documentation for a complete overview.
Todo¶
Other containers
Contents¶
Changelog¶
0.1.3 (2021-04-17)¶
Python 3.6 support
0.1.2 (2021-04-06)¶
Small fixes to docs
Fix typing according to PEP561
0.1.1 (2021-04-05)¶
Fix bug where docs dependencies were included in base release.
0.1.0 (2021-04-05)¶
Improve documentation, typing of
Maybe.
0.0.2 (2021-04-05)¶
First implementation of
Maybe.