Use Python 3.13 by default

.github/workflows/ci.yaml

@@ -48,7 +48,7 @@ jobs:
           go-version-file: go.mod
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.12
+          python-version: 3.13
       - uses: hynek/setup-cached-uv@v2
       - name: Prepare tox
         run: uv pip install --system tox tox-uv
@@ -138,7 +138,7 @@ jobs:
           go-version-file: go.mod
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.12
+          python-version: 3.13
       - uses: hynek/setup-cached-uv@v2
       - name: Prepare tox
         run: uv pip install --system tox tox-uv
@@ -171,7 +171,7 @@ jobs:
           go-version-file: go.mod
       - uses: goreleaser/goreleaser-action@v6
         with:
-          version: '~> v2'
+          version: "~> v2"
           args: release --clean
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -30,7 +30,7 @@ build:
   system_packages:
     - "libgl1-mesa-glx"
     - "libglib2.0-0"
-  python_version: "3.12"
+  python_version: "3.13"
   python_packages:
     - "torch==2.3"
 predict: "predict.py:Predictor"
@@ -131,7 +131,7 @@ If you're using macOS, you can install Cog using Homebrew:
 brew install cog
 ```
 
-You can also download and install the latest release using our 
+You can also download and install the latest release using our
 [install script](https://cog.run/install):
 
 ```sh
@@ -146,7 +146,7 @@ wget -qO- https://cog.run/install.sh
 sh ./install.sh
 ```
 
-You can manually install the latest release of Cog directly from GitHub 
+You can manually install the latest release of Cog directly from GitHub
 by running the following commands in a terminal:
 
 ```console

docs/yaml.md

@@ -100,7 +100,7 @@ build:
   python_version: "3.11.1"
 ```
 
-Cog supports all active branches of Python: 3.8, 3.9, 3.10, 3.11, 3.12. If you don't define a version, Cog will use the latest version of Python 3.12 or a version of Python that is compatible with the versions of PyTorch or TensorFlow you specify.
+Cog supports all active branches of Python: 3.8, 3.9, 3.10, 3.11, 3.12, 3.13. If you don't define a version, Cog will use the latest version of Python 3.13 or a version of Python that is compatible with the versions of PyTorch or TensorFlow you specify.
 
 Note that these are the versions supported **in the Docker container**, not your host machine. You can run any version(s) of Python you wish on your host machine.
 
@@ -158,7 +158,7 @@ r8.im is Replicate's registry, but this can be any Docker registry.
 
 If you don't set this, then a name will be generated from the directory name.
 
-If you set this, then you can run `cog push` without specifying the model name. 
+If you set this, then you can run `cog push` without specifying the model name.
 
 If you specify an image name argument when pushing (like `cog push your-username/custom-model-name`), the argument will be used and the value of `image` in cog.yaml will be ignored.
 

pkg/config/config.go

@@ -80,7 +80,7 @@ func DefaultConfig() *Config {
 	return &Config{
 		Build: &Build{
 			GPU:           false,
-			PythonVersion: "3.12",
+			PythonVersion: "3.13",
 		},
 	}
 }

pkg/config/config_test.go

@@ -20,7 +20,7 @@ func TestValidateModelPythonVersion(t *testing.T) {
 	}{
 		{
 			name:          "ValidVersion",
-			pythonVersion: "3.12",
+			pythonVersion: "3.13",
 		},
 		{
 			name:          "MinimumVersion",
@@ -39,7 +39,7 @@ func TestValidateModelPythonVersion(t *testing.T) {
 		},
 		{
 			name:          "FullyQualifiedVersion",
-			pythonVersion: "3.12.1",
+			pythonVersion: "3.13.1",
 		},
 		{
 			name:          "InvalidFormat",

pkg/config/torch_compatibility_matrix.json

@@ -7,10 +7,10 @@
     "ExtraIndexURL": "https://download.pytorch.org/whl/cpu",
     "CUDA": null,
     "Pythons": [
+      "3.9",
       "3.10",
       "3.11",
-      "3.12",
-      "3.9"
+      "3.12"
     ]
   },
   {
@@ -21,10 +21,10 @@
     "ExtraIndexURL": "https://download.pytorch.org/whl/cu118",
     "CUDA": "11.8",
     "Pythons": [
+      "3.9",
       "3.10",
       "3.11",
-      "3.12",
-      "3.9"
+      "3.12"
     ]
   },
   {
@@ -35,10 +35,10 @@
     "ExtraIndexURL": "https://download.pytorch.org/whl/cu121",
     "CUDA": "12.1",
     "Pythons": [
+      "3.9",
       "3.10",
       "3.11",
-      "3.12",
-      "3.9"
+      "3.12"
     ]
   },
   {
@@ -49,10 +49,10 @@
     "ExtraIndexURL": "https://download.pytorch.org/whl/cu124",
     "CUDA": "12.4",
     "Pythons": [
+      "3.9",
       "3.10",
       "3.11",
-      "3.12",
-      "3.9"
+      "3.12"
     ]
   },
   {
@@ -63,11 +63,11 @@
     "ExtraIndexURL": "https://download.pytorch.org/whl/cpu",
     "CUDA": null,
     "Pythons": [
+      "3.9",
       "3.10",
       "3.11",
       "3.12",
-      "3.13",
-      "3.9"
+      "3.13"
     ]
   },
   {
@@ -78,11 +78,11 @@
     "ExtraIndexURL": "https://download.pytorch.org/whl/cu118",
     "CUDA": "11.8",
     "Pythons": [
+      "3.9",
       "3.10",
       "3.11",
       "3.12",
-      "3.13",
-      "3.9"
+      "3.13"
     ]
   },
   {
@@ -93,12 +93,11 @@
     "ExtraIndexURL": "https://download.pytorch.org/whl/cu121",
     "CUDA": "12.1",
     "Pythons": [
+      "3.9",
       "3.10",
       "3.11",
       "3.12",
-      "3.13",
-      "3.9",
-      "3.10"
+      "3.13"
     ]
   },
   {
@@ -109,11 +108,11 @@
     "ExtraIndexURL": "https://download.pytorch.org/whl/cu124",
     "CUDA": "12.4",
     "Pythons": [
+      "3.9",
       "3.10",
       "3.11",
       "3.12",
-      "3.13",
-      "3.9"
+      "3.13"
     ]
   },
   {

pkg/dockerfile/base_test.go

@@ -55,7 +55,7 @@ func TestBaseImageConfigurationExists(t *testing.T) {
 }
 
 func TestBaseImageConfigurationExistsNoTorch(t *testing.T) {
-	exists, _, _, _ := BaseImageConfigurationExists("", "3.12", "")
+	exists, _, _, _ := BaseImageConfigurationExists("", "3.13", "")
 	require.True(t, exists)
 }
 

pkg/dockerfile/standard_generator_test.go

@@ -100,7 +100,7 @@ predict: predict.py:Predictor
 
 	expected := `#syntax=docker/dockerfile:1.4
 FROM r8.im/replicate/cog-test-weights AS weights
-FROM python:3.12-slim
+FROM python:3.13-slim
 ENV DEBIAN_FRONTEND=noninteractive
 ENV PYTHONUNBUFFERED=1
 ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu:/usr/local/nvidia/lib64:/usr/local/nvidia/bin
@@ -138,7 +138,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 ENV PYTHONUNBUFFERED=1
 ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu:/usr/local/nvidia/lib64:/usr/local/nvidia/bin
 ENV NVIDIA_DRIVER_CAPABILITIES=all
-` + testTini() + testInstallPython("3.12") + "RUN rm -rf /usr/bin/python3 && ln -s `realpath \\`pyenv which python\\`` /usr/bin/python3 && chmod +x /usr/bin/python3" + `
+` + testTini() + testInstallPython("3.13") + "RUN rm -rf /usr/bin/python3 && ln -s `realpath \\`pyenv which python\\`` /usr/bin/python3 && chmod +x /usr/bin/python3" + `
 ` + testInstallCog(gen.relativeTmpDir, gen.strip) + `
 RUN find / -type f -name "*python*.so" -printf "%h\n" | sort -u > /etc/ld.so.conf.d/cog.conf && ldconfig
 WORKDIR /src
@@ -176,7 +176,7 @@ predict: predict.py:Predictor
 
 	expected := `#syntax=docker/dockerfile:1.4
 FROM r8.im/replicate/cog-test-weights AS weights
-FROM python:3.12-slim
+FROM python:3.13-slim
 ENV DEBIAN_FRONTEND=noninteractive
 ENV PYTHONUNBUFFERED=1
 ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu:/usr/local/nvidia/lib64:/usr/local/nvidia/bin
@@ -236,7 +236,7 @@ ENV PYTHONUNBUFFERED=1
 ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu:/usr/local/nvidia/lib64:/usr/local/nvidia/bin
 ENV NVIDIA_DRIVER_CAPABILITIES=all
 ` + testTini() + `RUN --mount=type=cache,target=/var/cache/apt,sharing=locked apt-get update -qq && apt-get install -qqy ffmpeg cowsay && rm -rf /var/lib/apt/lists/*
-` + testInstallPython("3.12") + "RUN rm -rf /usr/bin/python3 && ln -s `realpath \\`pyenv which python\\`` /usr/bin/python3 && chmod +x /usr/bin/python3" + `
+` + testInstallPython("3.13") + "RUN rm -rf /usr/bin/python3 && ln -s `realpath \\`pyenv which python\\`` /usr/bin/python3 && chmod +x /usr/bin/python3" + `
 COPY ` + gen.relativeTmpDir + `/requirements.txt /tmp/requirements.txt
 ENV CFLAGS="-O3 -funroll-loops -fno-strict-aliasing -flto -S"
 RUN --mount=type=cache,target=/root/.cache/pip pip install -r /tmp/requirements.txt
@@ -280,7 +280,7 @@ build:
 
 	expected := `#syntax=docker/dockerfile:1.4
 FROM r8.im/replicate/cog-test-weights AS weights
-FROM python:3.12-slim
+FROM python:3.13-slim
 ENV DEBIAN_FRONTEND=noninteractive
 ENV PYTHONUNBUFFERED=1
 ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu:/usr/local/nvidia/lib64:/usr/local/nvidia/bin
@@ -394,7 +394,7 @@ ENV PYTHONUNBUFFERED=1
 ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu:/usr/local/nvidia/lib64:/usr/local/nvidia/bin
 ENV NVIDIA_DRIVER_CAPABILITIES=all
 ` + testTini() + `RUN --mount=type=cache,target=/var/cache/apt,sharing=locked apt-get update -qq && apt-get install -qqy ffmpeg cowsay && rm -rf /var/lib/apt/lists/*` + `
-` + testInstallPython("3.12") + `RUN rm -rf /usr/bin/python3 && ln -s ` + "`realpath \\`pyenv which python\\`` /usr/bin/python3 && chmod +x /usr/bin/python3" + `
+` + testInstallPython("3.13") + `RUN rm -rf /usr/bin/python3 && ln -s ` + "`realpath \\`pyenv which python\\`` /usr/bin/python3 && chmod +x /usr/bin/python3" + `
 COPY ` + gen.relativeTmpDir + `/requirements.txt /tmp/requirements.txt
 ENV CFLAGS="-O3 -funroll-loops -fno-strict-aliasing -flto -S"
 RUN --mount=type=cache,target=/root/.cache/pip pip install -r /tmp/requirements.txt
@@ -466,7 +466,7 @@ predict: predict.py:Predictor
 	require.NoError(t, err)
 
 	expected := `#syntax=docker/dockerfile:1.4
-FROM python:3.12-slim
+FROM python:3.13-slim
 ENV DEBIAN_FRONTEND=noninteractive
 ENV PYTHONUNBUFFERED=1
 ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/x86_64-linux-gnu:/usr/local/nvidia/lib64:/usr/local/nvidia/bin
@@ -500,7 +500,7 @@ predict: predict.py:Predictor
 
 	expected := `#syntax=docker/dockerfile:1.4
 FROM r8.im/replicate/cog-test-weights AS weights
-FROM r8.im/cog-base:python3.12
+FROM r8.im/cog-base:python3.13
 ` + testInstallCog(gen.relativeTmpDir, gen.strip) + `
 WORKDIR /src
 EXPOSE 5000
@@ -519,7 +519,7 @@ build:
   system_packages:
     - ffmpeg
     - cowsay
-  python_version: "3.12"
+  python_version: "3.13"
   python_packages:
     - pandas==1.2.0.12
   run:
@@ -537,7 +537,7 @@ predict: predict.py:Predictor
 
 	expected := `#syntax=docker/dockerfile:1.4
 FROM r8.im/replicate/cog-test-weights AS weights
-FROM r8.im/cog-base:python3.12
+FROM r8.im/cog-base:python3.13
 RUN --mount=type=cache,target=/var/cache/apt,sharing=locked apt-get update -qq && apt-get install -qqy cowsay && rm -rf /var/lib/apt/lists/*
 ` + testInstallCog(gen.relativeTmpDir, gen.strip) + `
 COPY ` + gen.relativeTmpDir + `/requirements.txt /tmp/requirements.txt
@@ -646,7 +646,7 @@ predict: predict.py:Predictor
 
 	expected := `#syntax=docker/dockerfile:1.4
 FROM r8.im/replicate/cog-test-weights AS weights
-FROM r8.im/cog-base:cuda11.8-python3.12-torch2.3.1
+FROM r8.im/cog-base:cuda11.8-python3.13-torch2.3.1
 RUN --mount=type=cache,target=/var/cache/apt,sharing=locked apt-get update -qq && apt-get install -qqy cowsay && rm -rf /var/lib/apt/lists/*
 ` + testInstallCog(gen.relativeTmpDir, gen.strip) + `
 COPY ` + gen.relativeTmpDir + `/requirements.txt /tmp/requirements.txt
@@ -698,7 +698,7 @@ predict: predict.py:Predictor
 
 	expected := `#syntax=docker/dockerfile:1.4
 FROM r8.im/replicate/cog-test-weights AS weights
-FROM r8.im/cog-base:cuda11.8-python3.12-torch2.3.1
+FROM r8.im/cog-base:cuda11.8-python3.13-torch2.3.1
 RUN --mount=type=cache,target=/var/cache/apt,sharing=locked apt-get update -qq && apt-get install -qqy cowsay && rm -rf /var/lib/apt/lists/*
 ` + testInstallCog(gen.relativeTmpDir, gen.strip) + `
 COPY ` + gen.relativeTmpDir + `/requirements.txt /tmp/requirements.txt
@@ -782,7 +782,7 @@ predict: predict.py:Predictor
 
 	expected := `#syntax=docker/dockerfile:1.4
 FROM r8.im/replicate/cog-test-weights AS weights
-FROM r8.im/cog-base:cuda11.8-python3.12-torch2.3.1
+FROM r8.im/cog-base:cuda11.8-python3.13-torch2.3.1
 RUN --mount=type=cache,target=/var/cache/apt,sharing=locked apt-get update -qq && apt-get install -qqy cowsay && rm -rf /var/lib/apt/lists/*
 ` + testInstallCog(gen.relativeTmpDir, gen.strip) + `
 COPY ` + gen.relativeTmpDir + `/requirements.txt /tmp/requirements.txt

pyproject.toml

@@ -16,6 +16,7 @@ classifiers = [
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
 ]
 requires-python = ">=3.8"
 

tools/compatgen/internal/torch.go

@@ -209,7 +209,7 @@ func parseTorchInstallString(s string, defaultVersions map[string]string, cuda *
 	torchaudio := libVersions["torchaudio"]
 
 	// TODO: this could be determined from https://download.pytorch.org/whl/torch/
-	pythons := []string{"3.8", "3.9", "3.10", "3.11", "3.12"}
+	pythons := []string{"3.8", "3.9", "3.10", "3.11", "3.12", "3.13"}
 
 	return &config.TorchCompatibility{
 		Torch:         torch,

tox.ini

@@ -32,15 +32,15 @@ commands =
   tests: pytest python/tests --cov={env_site_packages_dir}/cog --cov-report term-missing:skip-covered {posargs:-n auto -vv}
 
 [testenv:lint]
-base_python = python3.12
+base_python = python3.13
 skip_install = true
 deps = ruff
 commands =
   ruff check python/cog
   ruff format --check python
 
 [testenv:typecheck-pydantic1]
-base_python = python3.12
+base_python = python3.13
 deps =
     pyright==1.1.375
     pydantic>=1,<2
@@ -54,14 +54,14 @@ allowlist_externals =
     sed
 
 [testenv:typecheck-pydantic2]
-base_python = python3.12
+base_python = python3.13
 deps =
     pyright==1.1.375
     pydantic>=2,<3
 commands = pyright {posargs}
 
 [testenv:integration]
-base_python = python3.12
+base_python = python3.13
 changedir = test-integration
 skip_install = true
 deps =