Use JavaScript-like object definition syntax in Python
Project description
Literal Dict
literal-dict
is a Python utility that allows for the creation of dictionary objects with a syntax reminiscent of JavaScript object notation. This tool is particularly useful for developers looking to streamline their code by reducing the verbosity commonly associated with dictionary creation in Python.
Features
- Intuitive Variable Inclusion: Create Python dictionaries using a syntax similar to JavaScript objects: automatically uses variable names as keys, simplifying the process of dictionary creation.
- Flexible Dictionary Implementations: Supports custom dictionary implementations, enabling behaviors like ordered dictionaries, default dictionaries, dot dictionaries, and more.
- Various Python Distribution Supports: This package is tested under almost every popular python implementations.
Installation
pip install literal-dict
Usage
Basic Dictionary Creation
Start by importing DictBuilder
from the package:
from literal_dict import DictBuilder
Create a DictBuilder
instance:
d = DictBuilder()
Now, you can create dictionaries with a simplified syntax:
name = "Muspi Merol"
age = 20
user = d[name, age, "active": True]
print(user) # Output: {'name': 'Muspi Merol', 'age': 20, 'active': True}
Using Custom Dictionary Implementations
DictBuilder
allows specifying a custom dict-like type:
Example with types.SimpleNamespace
Using SimpleNamespace
from the types
module allows for attribute-style access to dictionary keys. This can make your code cleaner and more readable in some cases.
from types import SimpleNamespace
from literal_dict import DictBuilder
d = DictBuilder(lambda dict: SimpleNamespace(**dict))
name = "Muspi Merol"
email = "me@promplate.dev"
person = d[name, email]
print(person.name) # Output: Muspi Merol
print(person.email) # Output: me@promplate.dev
Note: When using SimpleNamespace
, the returned object is not a dictionary but an instance of SimpleNamespace
, which allows for dot-notation access to the attributes.
Example with collections.defaultdict
from collections import defaultdict
from functools import partial
from literal_dict import DictBuilder
d = DictBuilder(partial(defaultdict, int))
a = 1
obj = d[a, "b":2]
print(obj["c"]) # Output: 0, since 'c' does not exist, it returns the default int value
Conclusion
The Literal Dict Builder
offers a succinct and intuitive way to create dictionaries in Python, drawing inspiration from JavaScript's object notation. Its support for custom dictionary implementations adds a layer of flexibility, allowing developers to tailor their data structures to fit their needs.
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