update readme for old python version and prevent release script run

python/README.md

@@ -1,5 +1,9 @@
 # nitor-vault
 
+> [!CAUTION]
+> This implementation has been superceded by the [Python-pyo3](../python-pyo3) version
+> that uses the Rust implementation internally.
+
 Python vault implementation.
 
 See the [root readme](../README.md) for more information.
@@ -59,17 +63,6 @@ python -m pip install .
 
 After installing, you will have `vault` available in path.
 
-## Release
-
-Use the provided shell script.
-Note that you need to have a venv with the extra dependencies installed active when running the script.
-
-```shell
-./release.sh
-# See help
-./release.sh -h
-```
-
 ## Code formatting and linting
 
 Code formatting and linting with [ruff](https://github.com/charliermarsh/ruff).

python/release.sh

@@ -87,6 +87,8 @@ init_options() {
 
 init_options "$@"
 
+print_error_and_exit "This implementation has been replaced with the python-pyo3 version"
+
 print_magenta "Updating version number..."
 "${SED_COMMAND[@]}" "s/^VERSION = .*/VERSION = \"$NEW_VERSION\"/g" n_vault/__init__.py
 "${SED_COMMAND[@]}" "s/^version = .*/version = \"$NEW_VERSION\"/g" pyproject.toml