Can't use numpy types for array shapes

[joshua-gould]

Zarr version

3.1.5

Numcodecs version

0.16.5

Python Version

3.12

Operating System

Mac

Installation

pip

Description

In zarr 3, shapes can no longer be numpy int types. This used to work in zarr 2.

Steps to reproduce

# /// script
# requires-python = ">=3.11"
# dependencies = [
#   "zarr@git+https://github.com/zarr-developers/zarr-python.git@main",
# ]
# ///
#
# This script automatically imports the development branch of zarr to check for issues

import zarr
import numpy as np


a = np.ones(2, dtype=int)
zarr.create_array("test", shape=(int(a.max())), dtype=int)  # works
zarr.create_array("test2", shape=(a.max()),
                  dtype=int)  # TypeError: Expected an integer or an iterable of integers. Got 1 instead.

Additional output

No response

[d-v-b]

thanks for this report! Should be easy to fix.