Merge remote-tracking branch 'origin/master'

# Conflicts:
#	doc/index.rst
#	doc/release_notes.rst
#	linopy/constants.py
#	linopy/expressions.py
#	linopy/io.py
#	linopy/model.py
#	linopy/solvers.py

Author: FBumann

.github/workflows/claude.yml

@@ -31,7 +31,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 

.github/workflows/codeql.yml

@@ -55,7 +55,7 @@ jobs:
         # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
     name: Build and verify package
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: hynek/build-and-inspect-python-package@v2
 
   release:
@@ -20,7 +20,7 @@ jobs:
     needs: [build]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: softprops/action-gh-release@v2
         with:
           generate_release_notes: true
@@ -36,7 +36,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/download-artifact@v6
+      - uses: actions/download-artifact@v7
         with:
           name: Packages
           path: dist

.github/workflows/test-models.yml

@@ -31,7 +31,7 @@ jobs:
         shell: bash -l {0}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           repository: PyPSA/pypsa-eur
           ref: master
@@ -59,7 +59,7 @@ jobs:
           echo -ne "url: ${CDSAPI_URL}\nkey: ${CDSAPI_TOKEN}\n" > ~/.cdsapirc
           echo "week=$(date +'%Y%U')" >> $GITHUB_ENV # data and cutouts
 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         if: env.pinned == 'false'
         with:
           path: |
@@ -74,7 +74,7 @@ jobs:
 
       - name: Cache Conda env
         if: env.pinned == 'false'
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ env.CONDA }}/envs
           key: conda-pypsa-eur-${{ env.week }}-${{ hashFiles('envs/linux-64.lock.yaml') }}
@@ -101,7 +101,7 @@ jobs:
 
       - name: Upload artifacts
         if: env.pinned == 'false'
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: results-pypsa-eur-${{ matrix.version }}
           path: |

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
     name: Build and verify package
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # Needed for setuptools_scm
       - uses: hynek/build-and-inspect-python-package@v2
@@ -42,7 +42,7 @@ jobs:
         - windows-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0 # Needed for setuptools_scm
 
@@ -74,7 +74,7 @@ jobs:
         choco install glpk
 
     - name: Download package
-      uses: actions/download-artifact@v6
+      uses: actions/download-artifact@v7
       with:
         name: Packages
         path: dist
@@ -102,7 +102,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0 # Needed for setuptools_scm
 
@@ -112,7 +112,7 @@ jobs:
         python-version: 3.12
 
     - name: Download package
-      uses: actions/download-artifact@v6
+      uses: actions/download-artifact@v7
       with:
         name: Packages
         path: dist

.gitignore

@@ -49,3 +49,4 @@ benchmark/scripts/leftovers/
 
 # direnv
 .envrc
+AGENTS.md

.pre-commit-config.yaml

@@ -24,6 +24,7 @@ repos:
     rev: v0.4.1
     hooks:
     -   id: blackdoc
+        exclude: ^dev-scripts/
         additional_dependencies: ['black==24.8.0']
         exclude: dev-scripts/quadratic_constraints_plan\.md
 -   repo: https://github.com/codespell-project/codespell

CLAUDE.md

@@ -6,7 +6,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ### Running Tests
 ```bash
-# Run all tests
+# Run all tests (excluding GPU tests by default)
 pytest
 
 # Run tests with coverage
@@ -17,8 +17,16 @@ pytest test/test_model.py
 
 # Run a specific test function
 pytest test/test_model.py::test_model_creation
+
+# Run GPU tests (requires GPU hardware and cuPDLPx installation)
+pytest --run-gpu
+
+# Run only GPU tests
+pytest -m gpu --run-gpu
 ```
 
+**GPU Testing**: Tests that require GPU hardware (e.g., cuPDLPx solver) are automatically skipped by default since CI machines typically don't have GPUs. To run GPU tests locally, use the `--run-gpu` flag. The tests are automatically marked with `@pytest.mark.gpu` based on solver capabilities.
+
 ### Linting and Type Checking
 ```bash
 # Run linter (ruff)

README.md

@@ -149,6 +149,7 @@ Fri    0          4
 * [Cplex](https://www.ibm.com/de-de/analytics/cplex-optimizer)
 * [MOSEK](https://www.mosek.com/)
 * [COPT](https://www.shanshu.ai/copt)
+* [cuPDLPx](https://github.com/MIT-Lu-Lab/cuPDLPx)
 
 Note that these do have to be installed by the user separately.
 

doc/conf.py

@@ -42,8 +42,12 @@
     "nbsphinx",
     "nbsphinx_link",
     "sphinx.ext.imgconverter",  # for SVG conversion
+    "sphinx_copybutton",
 ]
 
+copybutton_prompt_text = r">>> |\.\.\. |\$ |In \[\d*\]: | {2,5}\.\.\.: | {5,8}: "
+copybutton_prompt_is_regexp = True
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ["_templates"]