rewrite captcha

captcha/_set.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+cd "$(dirname "$0")" || exit
+python3 -m venv venv
+source venv/bin/activate
+pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
+#nuitka --standalone smtp.py