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RNumPy

Project description

rnumpy

An experiment in trying to define a core and cleaned-up NumPy API: RNumPy

Don't use this just yet! It will be ready for production use soon, but the API may still change in the near future.

The main goals of this project:

  1. Provide a package with NumPy functions that contain the essence of NumPy for end users. I.e. what would the NumPy API look like if we could remove functions and objects from it and move things around without worrying about backwards compatibility.
  2. Answer the question: "what's the minimal set of functions needed to form a core of numpy?"

(1) allows end users to use rnumpy instead of numpy, and thereby work with a much easier to navigate package where they can be confident that the functions they use are well-maintained and "best practice". In many cases, NumPy contains multiple ways of doing things. Superceded functions are kept for backwards compatibility. Often users won't realize that, and use a function that has a more modern alternative. Using rnumpy, they won't have to worry about that.

Besides end users, (1) is also aimed at authors of NumPy-like libraries. It suggests a subset of the full NumPy API that makes sense to support.

(2) can form the basis of reimplementing other functions in terms of "core" functions. An example may clarify this. To create an array filled with all the same values, NumPy offers ones, zeros, empty, full, ones_like, zeros_like, empty_like, full_like and ndarray.fill. The fundamental building blocks are empty and ndarray.fill. So one could reimplement, e.g., ones as:

def ones(...):
    return np.empty(...).fill(1)

Such implementations in terms of core functions is useful for ndarray subclass authors, people porting NumPy to other platforms (e.g. WebAssembly), and probably other groups of developers too.

See the docstring of rnumpy/__init__.py for more details.

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