strongpy 0.1.4

Runtime type checker

⚡ Strongpy

A simple runtime type checker for Python functions.

It validates function arguments and return values using type annotations.

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🚀 Features

• Runtime type checking for function arguments
• Return type validation
• Supports modern Python typing:
  • list[T]
  • dict[K, V]
  • tuple
  • set, frozenset
  • Union (|)
  • Literal

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📦 Installation

pip install strongpy

or (using uv)

uv add strongpy

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🧪 Usage

from strongpy import strong

@strong
def add(x: int, y: int) -> int:
    return x + y

print(add(1, 2))   # OK
print(add("1", 2)) # TypeError

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💥 Example error

add argument 'x' expected int, got str

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🧠 Supported types

• int, str, float, bool
• list[T]
• dict[K, V]
• tuple[T, ...]
• set[T]
• frozenset[T]
• Union (int | str)
• Literal

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⚙️ Philosophy

Strong is designed to be:

• simple
• explicit
• predictable

No magic, no runtime inference — only annotations.

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🐍 Requirements

Python 3.13+

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📌 License

MIT