Modular•14mo ago

Should we fuse Python's array class and mojo's DynamicVector's struct?

They are extremely similar. Here is the documentation for array: https://docs.python.org/3/library/array.html Here is the documentation for DynamicVector: https://docs.modular.com/mojo/stdlib/utils/vector.html#dynamicvector With just a few more attributes and methods, Python's array could become a DynamicVector. If Mojo wants to be a good member of the Python family, maybe we should not reinvent what's already in the stdlib.

Python documentation

array — Efficient arrays of numeric values

This module defines an object type which can compactly represent an array of basic values: characters, integers, floating point numbers. Arrays are sequence types and behave very much like lists, e...

Modular Docs - vector

Module

3 Replies

Alex Kirchhoff•14mo ago

Mojo's DynamicVector is closer to Python's list -- a better equivalent to Python's array is Mojo's Tensor. (DynamicVectors are resizeable dynamically; Tensor shapes are fixed at creation time.) That said, Mojo's standard library is in a very early state right now, and is changing rapidly. In particular, many useful things are not possible yet because traits are not ready yet. As the language develops further, we expect it will get closer to Python.

gabrieldemarmiesseOP•14mo ago

Great! Thanks for the detailed answer, though it seems there is a slightly misunderstanding, Python's array are resizable dynamically:

>>> import array
>>> a = array.array("i", [1, 2])
>>> a.append(3)
>>> a
array('i', [1, 2, 3])

>>> import array
>>> a = array.array("i", [1, 2])
>>> a.append(3)
>>> a
array('i', [1, 2, 3])

Though of course that doesn't invalidate your answer. I'll be waiting for traits 🙂

ModularBot•14mo ago

Congrats @gabrieldemarmiesse, you just advanced to level 3!

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Should we fuse Python's array class and mojo's DynamicVector's struct?