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Python dictionary with dot notation.

Project description


pypi tag travis codacy quality codacy quality pyver

Python dictionary with dot notation

  • Partially compartible with python-box
  • Issue #87 of python-box fixed
  • Customization of key conversion
from diot import Diot

movie_data = {
  "movies": {
    "Spaceballs": {
      "imdb stars": 7.1,
      "rating": "PG",
      "length": 96,
      "director": "Mel Brooks",
      "stars": [{"name": "Mel Brooks", "imdb": "nm0000316", "role": "President Skroob"},
                {"name": "John Candy","imdb": "nm0001006", "role": "Barf"},
                {"name": "Rick Moranis", "imdb": "nm0001548", "role": "Dark Helmet"}
    "Robin Hood: Men in Tights": {
      "imdb stars": 6.7,
      "rating": "PG-13",
      "length": 104,
      "director": "Mel Brooks",
      "stars": [
                {"name": "Cary Elwes", "imdb": "nm0000144", "role": "Robin Hood"},
                {"name": "Richard Lewis", "imdb": "nm0507659", "role": "Prince John"},
                {"name": "Roger Rees", "imdb": "nm0715953", "role": "Sheriff of Rottingham"},
                {"name": "Amy Yasbeck", "imdb": "nm0001865", "role": "Marian"}

# Box is a conversion_box by default, pass in `conversion_box=False` to disable that behavior
# Explicitly tell Diot to convert dict/list inside
movie_diot = Diot(movie_data)

# 6.7

# 'Mel Brooks'

# Different as box, you have to use Diot for new data in a list
	Diot({"name": "Bill Pullman", "imdb": "nm0000597", "role": "Lone Starr"}))
# 'Lone Starr'


pip install diot


Instantiated the same ways as dict

Diot({'data': 2, 'count': 5})
Diot(data=2, count=5)
Diot({'data': 2, 'count': 1}, count=5)
Diot([('data', 2), ('count', 5)])

# All will create
# Diot([('data', 2), ('count', 5)], diot_nest = True, diot_transform = 'safe')

Same as python-box, Diot is a subclass of dict which overrides some base functionality to make sure everything stored in the dict can be accessed as an attribute or key value.

diot = Diot({'data': 2, 'count': 5}) == diot['data'] == getattr(diot, 'data')

By default, diot uses a safe transformation to transform keys into safe names that can be accessed by

dt = Diot({"321 Is a terrible Key!": "yes, really"})
# 'yes, really'

Different as python-box, duplicate attributes are not allowed.

dt = Diot({"!bad!key!": "yes, really", ".bad.key.": "no doubt"})
# KeyError

Use different transform functions:

dt = Diot(oneTwo = 12, diot_transform = 'snake_case')
# or use alias:
# dt = SnakeDiot(oneTwo = 12)
dt.one_two == dt['one_two'] == dt['oneTwo'] == 12

dt = Diot(one_two = 12, diot_transform = 'camel_case')
# or use alias:
# dt = CamelDiot(one_two = 12)
dt.oneTwo == dt['one_two'] == dt['oneTwo'] == 12

dt = Diot(one_two = 12, diot_transform = 'upper')
dt.ONE_TWO == dt['one_two'] == dt['ONETWO'] == 12

dt = Diot(ONE_TWO = 12, diot_transform = 'lower')
dt.one_two == dt['ONE_TWO'] == dt['one_two'] == 12

Use your own transform function:

import inflection

dt = Diot(post = 10, diot_transform = inflection.pluralize)
dt.posts == dt['posts'] == dt['post'] == 10


diot_of_order = OrderedDiot()
diot_of_order.c = 1
diot_of_order.a = 2
diot_of_order.d = 3

list(diot_of_order.keys()) == ['c', 'a', 'd']

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