Merge branch 'feat/fixed-length-strings' of github.com:d-v-b/zarr-python into feat/numcodecs-compat

Author: d-v-b

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -57,7 +57,22 @@ body:
     id: reproduce
     attributes:
       label: Steps to reproduce
-      description: Minimal, reproducible code sample, a copy-pastable example if possible.
+      description: Minimal, reproducible code sample. Must list dependencies in [inline script metadata](https://packaging.python.org/en/latest/specifications/inline-script-metadata/#example). When put in a file named `issue.py` calling `uv run issue.py` should show the issue.
+      value: |
+        ```python
+        # /// 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
+        # your reproducer code
+        # zarr.print_debug_info()
+        ```
     validations:
       required: true
   - type: textarea

.github/workflows/gpu_test.yml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.11']
-        numpy-version: ['2.1']
+        numpy-version: ['2.2']
         dependency-set: ["minimal"]
 
     steps:

.github/workflows/hypothesis.yaml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.11']
-        numpy-version: ['2.1']
+        numpy-version: ['2.2']
         dependency-set: ["optional"]
 
     steps:

.github/workflows/test.yml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.11', '3.12', '3.13']
-        numpy-version: ['1.25', '2.1']
+        numpy-version: ['1.25', '2.2']
         dependency-set: ["minimal", "optional"]
         os: ["ubuntu-latest"]
         include:
@@ -30,15 +30,15 @@ jobs:
             dependency-set: 'optional'
             os: 'macos-latest'
           - python-version: '3.13'
-            numpy-version: '2.1'
+            numpy-version: '2.2'
             dependency-set: 'optional'
             os: 'macos-latest'
           - python-version: '3.11'
             numpy-version: '1.25'
             dependency-set: 'optional'
             os: 'windows-latest'
           - python-version: '3.13'
-            numpy-version: '2.1'
+            numpy-version: '2.2'
             dependency-set: 'optional'
             os: 'windows-latest'
     runs-on: ${{ matrix.os }}

.pre-commit-config.yaml

@@ -6,7 +6,7 @@ ci:
 default_stages: [pre-commit, pre-push]
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.9.9
+    rev: v0.11.9
     hooks:
       - id: ruff
         args: ["--fix", "--show-fixes"]
@@ -40,7 +40,7 @@ repos:
           - hypothesis
           - s3fs
   - repo: https://github.com/scientific-python/cookie
-    rev: 2025.01.22
+    rev: 2025.05.02
     hooks:
       - id: sp-repo-review
   - repo: https://github.com/pre-commit/pygrep-hooks

changes/2862.bugfix.rst

@@ -1,2 +1,9 @@
-Adds zarr-specific data type classes. This replaces the direct use of numpy data types for zarr
-v2 and a fixed set of string enums for zarr v3. For more on this new feature, see the `documentation </user-guide/data_types.html>`_
+Adds zarr-specific data type classes. This replaces the internal use of numpy data types for zarr
+v2 and a fixed set of string enums for zarr v3. This change is largely internal, but it does
+change the type of the ``dtype`` and ``data_type`` fields on the ``ArrayV2Metadata`` and
+``ArrayV3Metadata`` classes. It also changes the JSON metadata representation of the
+variable-length string data type, but the old metadata representation can still be
+used when reading arrays. The logic for automatically choosing the chunk encoding for a given data
+type has also changed, and this necessitated changes to the ``config`` API.
+
+For more on this new feature, see the `documentation </user-guide/data_types.html>`_