--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/mercurial/hg.sh	Tue Aug 04 04:16:45 2026 -0700
@@ -0,0 +1,15 @@
+#!/bin/sh
+set -eu
+
+runtime_root="$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)"
+python_binary="${PYTHON_BIN:-python3.11}"
+if ! command -v "$python_binary" >/dev/null 2>&1; then
+  echo "Mercurial requires CPython 3.11: $python_binary was not found." >&2
+  exit 1
+fi
+if [ "$("$python_binary" -c 'import sys; print(f"{sys.version_info.major}.{sys.version_info.minor}")')" != "3.11" ]; then
+  echo "Mercurial requires CPython 3.11." >&2
+  exit 1
+fi
+export PYTHONPATH="$runtime_root${PYTHONPATH:+:$PYTHONPATH}"
+exec "$python_binary" -m mercurial "$@"