add python_version block to config templates

Author: dionhaefner

tesseract_core/sdk/templates/base/tesseract_config.yaml

@@ -17,6 +17,12 @@ build_config:
   # Base image to use for the container, must be Ubuntu or Debian-based
   # base_image: "debian:bookworm-slim"
 
+  # Python version to use inside the container (e.g. "3.12"). When set, the given
+  # version is installed via `uv python install`, decoupling it from the base
+  # image. When unset, the base image's system Python is used. Cannot be combined
+  # with conda requirements; set the version in tesseract_environment.yaml instead.
+  # python_version: "3.12"
+
   # Platform to build the container for. In general, images can only be executed
   # on the platform they were built for.
   target_platform: "native"

tesseract_core/sdk/templates/jax/tesseract_config.yaml

@@ -17,6 +17,12 @@ build_config:
   # Base image to use for the container, must be Ubuntu or Debian-based
   # base_image: "debian:bookworm-slim"
 
+  # Python version to use inside the container (e.g. "3.12"). When set, the given
+  # version is installed via `uv python install`, decoupling it from the base
+  # image. When unset, the base image's system Python is used. Cannot be combined
+  # with conda requirements; set the version in tesseract_environment.yaml instead.
+  # python_version: "3.12"
+
   # Platform to build the container for. In general, images can only be executed
   # on the platform they were built for.
   target_platform: "native"

tesseract_core/sdk/templates/pytorch/tesseract_config.yaml

@@ -17,6 +17,12 @@ build_config:
   # Base image to use for the container, must be Ubuntu or Debian-based
   # base_image: "debian:bookworm-slim"
 
+  # Python version to use inside the container (e.g. "3.12"). When set, the given
+  # version is installed via `uv python install`, decoupling it from the base
+  # image. When unset, the base image's system Python is used. Cannot be combined
+  # with conda requirements; set the version in tesseract_environment.yaml instead.
+  # python_version: "3.12"
+
   # Platform to build the container for. In general, images can only be executed
   # on the platform they were built for.
   target_platform: "native"