keras needs py >=3.9

.github/workflows/build.yaml

@@ -30,6 +30,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Install Conda environment with Micromamba
+      if: matrix.python-version != '3.8'
       uses: mamba-org/setup-micromamba@v1
       with:
         cache-downloads: true
@@ -38,6 +39,14 @@ jobs:
         create-args: >-
           python=${{ matrix.python-version }}
         post-cleanup: 'all'
+    - name: Install py3.8 environment
+      if: matrix.python-version == '3.8'
+      uses: mamba-org/setup-micromamba@v1
+      with:
+        cache-downloads: true
+        cache-environment: true
+        environment-file: dev/env-py38.yaml
+        post-cleanup: 'all'
     - name: additional setup
       run: pip install --no-deps -e .
     - name: pytest-spec-conda

README.md

@@ -59,7 +59,7 @@ pip install bioimageio.core[onnx,pytorch]
 
 ### Set up Development Environment
 
-To set up a development mamba environment run the following commands:
+To set up a development conda environment run the following commands:
 
 ```console
 mamba env create -f dev/env.yaml

dev/env-py38.yaml

@@ -0,0 +1,36 @@
+# manipulated copy of env.yaml
+name: core38
+channels:
+  - conda-forge
+  - defaults
+dependencies:
+  - bioimageio.spec>=0.5.1
+  - black
+  - crick
+  - filelock
+  - imageio>=2.5
+  # - keras>=3.0  # removed
+  - loguru
+  - numpy
+  - onnxruntime
+  - packaging>=17.0
+  - pip
+  - pre-commit
+  - psutil
+  - pydantic
+  - pydantic-settings
+  - pyright
+  - pytest
+  - pytest-xdist
+  - python-dotenv
+  - python=3.8 # changed
+  - pytorch>=2.1
+  - ruff
+  - ruyaml
+  - torchvision
+  - tqdm
+  - typer
+  - typing-extensions
+  - xarray
+  - pip:
+      - --no-deps -e ..

dev/env-wo-python.yaml

@@ -23,8 +23,8 @@ dependencies:
   - pytest
   - pytest-xdist
   - python-dotenv
-  # - python=3.8  # removed
-  - pytorch>=1.6
+  # - python=3.9  # removed
+  - pytorch>=2.1
   - ruff
   - ruyaml
   - torchvision

dev/env.yaml

@@ -22,8 +22,8 @@ dependencies:
   - pytest
   - pytest-xdist
   - python-dotenv
-  - python=3.8
-  - pytorch>=1.6
+  - python=3.9
+  - pytorch>=2.1
   - ruff
   - ruyaml
   - torchvision

dev/environment-tf.yaml

@@ -23,8 +23,8 @@ dependencies:
   - pytest
   - pytest-xdist
   - python-dotenv
-  - python=3.8
-  # - pytorch>=1.6  # removed
+  - python=3.9
+  # - pytorch>=2.1 # removed
   - ruff
   - ruyaml
   - tensorflow>=2.16 # added