Warning
This library is under active development, expect things to break or not to work as expected. Creating an issue for bugs you encounter would be appreciated. Documentation is currently work in progress.
Data and object validation in Python is essential to ensure that the inputs to a program are
accurate and adhere to expected formats, thereby preventing runtime errors and enhancing code
reliability. The TypeScript library zod offers a concise and expressive syntax for schema
validation, making it easier to define and enforce data structures. Implementing a similar library
in Python would greatly benefit developers by providing a streamlined, declarative approach to
validation, reducing boilerplate code and improving maintainability. This would facilitate more
robust data handling and enhance the overall quality of Python applications.
I chose the name "Parasite" for this library because it draws heavy inspiration from the TypeScript
zod library, which excels in schema validation with its concise and expressive syntax. The name
"Parasite" is also a nod to one of Superman's iconic supervillains, serving as an homage to the
library that inspired this creation.
Install using pip:
pip install parasiteInstall using poetry CLI:
poetry add parasiteor using pyproject.toml:
[tool.poetry.dependencies]
parasite = "^0.1.0"from parasite import p
schema = p.obj({
"name": p.string().required(),
"age": p.number().integer().min(0).optional(),
}).strip()
data = {
"name": "John Doe",
"age": 42,
"extra": "This will be stripped",
}
schema.parse(data) # {'name': 'John Doe', 'age': 42}
schema.parse({}) # ValidationError: Missing required key: 'name'Important
You can find the sphinx online documentation here!
Copyright (c) 2024, Hendrik Böck <hendrikboeck.dev@protonmail.com>
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