feat: add python installer

python3/install.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+# title: Python 3 (alias for python)
+# homepage: https://webinstall.dev/python
+# tagline: Alias for https://webinstall.dev/python
+# alias: python
+# description: |
+#   See https://webinstall.dev/python
+
+set -e
+set -u
+
+function __redirect_alias_python() {
+    echo "'python@${WEBI_TAG:-stable}' is an alias for 'python@${WEBI_VERSION:-}'"
+    WEBI_HOST=${WEBI_HOST:-"https://webinstall.dev"}
+    curl -fsSL "$WEBI_HOST/python@${WEBI_VERSION:-}" | bash
+}
+
+__redirect_alias_python