ezvectors 0.1.1

A lightweight, zero-dependency 2D vector library for Python.

ezvectors

A fast and lightweight 2D vector class for Python. No dependencies required.

I built this because I needed vectors for my initial prototype of a 2D physics engine and using NumPy for some really simple vector math is genuinely slower than pure Python. The overhead of calling into compiled C code through Python's FFI for something as small as adding two floats together completely negates any performance benefit. So I wrote my own vector library!

ezvectors gives you a Vector2 class that uses __slots__ for a small memory footprint, avoids unnecessary object allocation in arithmetic, and works seamlessly with plain tuples.

You can install ezvectors via pip:

pip install ezvectors

Usage

from ezvectors import Vector2

a = Vector2(3, 4)
b = Vector2(1, 2)

a + b             # Vector2(4, 6)
a - (1, 1)        # Vector2(2, 3) — tuples work everywhere
a * 2             # Vector2(6, 8)
a.magnitude()     # 5.0
a.normalize()     # Vector2(0.6, 0.8)
a.dot(b)          # 11
a.distance_to(b)  # 2.8284...
a.rotate_deg(90)  # Vector2(-4, 3)

Full API reference and examples in documentation.md.

Tests

pip install pytest
pytest tests/

License

MIT — see LICENSE.md.