posmatch
Positional sub-pattern matching for custom classes.
Requirements
Python 3.10 or higher.
Installation
pip install posmatchUsage
The pos_match decorator
from posmatch import pos_match
@pos_match
class Color:
def __init__(self, red, green, blue):
self.red = red
self.green = green
self.blue = blue
color = Color(0, 0, 128)
match color:
case Color(r, g, b) if r == g == b:
print('Shade of grey')
case Color(0, 0):
print('Shade of blue')Output:
Shade of blueThe PosMatchMeta metaclass
from posmatch import PosMatchMeta
class Date(metaclass=PosMatchMeta):
def __init__(self, year, month, day):
self.year = year
self.month = month
self.day = day
date = Date(2121, 1, 1)
match date:
case Date(_, m, d) if m == 5 and d == 1:
print('May Day')
case Date(y) if y > 2100:
print('Distant future')Output:
Distant futureThe PosMatchMixin mix-in class
from posmatch import PosMatchMixin
class Rectangle(PosMatchMixin):
def __init__(self, width, height):
self.width = width
self.height = height
shape = Rectangle(16, 16)
match shape:
case Rectangle(w, h) if w == h:
print('Square')
case Rectangle(x, y) if x > y:
print('Landscape')Output:
Square1 maintainer
Metadata
1 maintainer
Release files for posmatch 0.8.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| posmatch-0.8.1.tar.gz | 3.1 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| posmatch-0.8.1-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 6.7 kB
Release files / posmatch-0.8.1.tar.gz
| Download URL | posmatch-0.8.1.tar.gz |
|---|---|
| Size | 3.1 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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| Upload date | |
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Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
poetry/1.8.3 CPython/3.12.4 Linux/6.5.0-35-generic
|
Release files / posmatch-0.8.1-py3-none-any.whl
| Download URL | posmatch-0.8.1-py3-none-any.whl |
|---|---|
| Size | 3.7 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
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BLAKE2b-256 checksum How to use checksums |
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| Upload date | |
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Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
poetry/1.8.3 CPython/3.12.4 Linux/6.5.0-35-generic
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