owlmixin 2.0.0a1

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

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

Warning

OwlMixin >= 2.0.0 support python 3.6 and upper only, and has many breaking changes since OwlMixin < 2.0.0

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

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.

Note

Below sample code uses 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?

API Reference

• for master

• for current stable version