Initial commit with translated description

scripts/run_tests.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Prevent Python from writing __pycache__/ bytecode files into the repo.
+export PYTHONDONTWRITEBYTECODE=1
+
+cd "$(dirname "$0")/.."
+
+# Clean up any stray bytecode from previous runs (should never be committed).
+find . -name '__pycache__' -type d -prune -exec rm -rf {} +
+find . -name '*.pyc' -type f -delete
+
+python3 -m unittest discover -s tests -v
+
+# Sanity check: tests should not leave bytecode behind.
+if find . -name '__pycache__' -o -name '*.pyc' | grep -q .; then
+  echo "ERROR: Python bytecode (__pycache__ / *.pyc) was created during tests." >&2
+  echo "Tip: ensure PYTHONDONTWRITEBYTECODE=1 is honored and you're not running Python with -B disabled." >&2
+  exit 1
+fi