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Mixin which converts ``data class instance`` and others each other more simple.

Project description

OwlMixin

travis coverage complexity license pypi versions

Motivation

Have you ever wanted to write robust code in Python? This library will make such your wishes come true.

Define your data class which is extend OwlMixin, you can use some useful methods which help your codes robust. See following Example and API Reference sections.

Installation

$ pip install owlmixin

API Reference

https://tadashi-aikawa.github.io/owlmixin/

Example

from owlmixin import OwlMixin
from owlmixin.owlenum import OwlEnum
from owlmixin.owloption import TOption
from owlmixin.owlcollections import TList

class Color(OwlEnum):
    RED = "red"
    GREEN = "green"
    BLUE = "blue"

class Food(OwlMixin):
    id: int
    name: str
    color: TOption[Color]

class Human(OwlMixin):
    id: int
    name: str
    favorite: TList[Food]

jiro = Human.from_dict({
    "id": 10,
    "name": "jiro",
    "favorite": [
        {"id": 1, "name": "apple"},
        {"id": 2, "name": "orange", "color": "green"}
    ]
})

>>> jiro.id
10
>>> jiro.name
'jiro'

>>> print(jiro.to_dict())
{'id': 10, 'name': 'jiro', 'favorite': [{'id': 1, 'name': 'apple'}, {'id': 2, 'name': 'orange', 'color': 'green'}]}

>>> print(jiro.favorite[0].to_pretty_json())
{
    "id": 1,
    "name": "apple"
}

>>> print(jiro.to_yaml())
favorite:
  - id: 1
    name: apple
  - color: green
    id: 2
    name: orange
id: 10
name: jiro

>>> print(jiro.favorite.to_csv(['id', 'name', 'color'], with_header=True))
id,name,color
1,apple,
2,orange,green

You can also use methods chains as following.

Below sample code uses kachayev/fn.py <https://github.com/kachayev/fn.py>_, great package!!

>>> from owlmixin.owloption import TOption
>>> from owlmixin.owlcollections import TList
>>>
>>> from fn import _
>>>
>>>
>>> class Repository(OwlMixin):
...     id: int
...     name: str
...     description: TOption[str]
...     stargazers_count: int
...
>>>
>>> class GithubRepository(OwlMixin):
...     total_count: int
...     incomplete_results: bool
...     items: TList[Repository]
...
>>>
>>> print(
...     GithubRepository \
...         .from_json_url("https://api.github.com/search/repositories?q=git") \
...         .items \
...         .filter(_.stargazers_count > 100) \
...         .order_by(_.stargazers_count, True) \
...         .head(5) \
...         .emap(lambda v, i: {
...             'RANK': i+1,
...             'STAR': v.stargazers_count,
...             'NAME': v.name,
...             'DESCRIPTION': v.description
...         }) \
...         .to_csv(fieldnames=["RANK", "STAR", "NAME", "DESCRIPTION"], with_header=True)
... )

RANK,STAR,NAME,DESCRIPTION
1,50787,gitignore,A collection of useful .gitignore templates
2,19308,gogs,Gogs is a painless self-hosted Git service.
3,17750,git,Git Source Code Mirror - This is a publish-only repository and all pull requests are ignored. Please follow Documentation/SubmittingPatches procedure for any of your improvements.
4,10744,hub,hub helps you win at git.
5,10338,tips,Most commonly used git tips and tricks.

Don't you think smart?

For developer

Requires pipenv and make.

Commands

# Create env
$ make init

# Build documentation and run server locally
$ make serve-docs

Version up

Before release, you need to

  1. Confirm that your branch name equals release version

Then

$ make release

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