feat: check environment, python version must be greater than or equal to 3.9

check_env/__init__.py

@@ -0,0 +1,13 @@
+import sys
+
+
+class UnsupportedPythonVersionError(Exception):
+    def __init__(self, error_msg: str):
+        super().__init__(error_msg)
+
+
+python_version_info = sys.version_info
+if not sys.version_info >= (3, 9):
+    msg = "当前Python版本: " + ".".join(map(str, python_version_info[:3])) + (', 需要python版本 >= 3.9, 前往下载: '
+                                                                              'https://www.python.org/downloads/')
+    raise UnsupportedPythonVersionError(msg)

main.py

@@ -2,6 +2,8 @@
 # -*- coding: utf-8 -*-
 
 import signal
+import check_env
+
 from argparse import ArgumentParser
 
 from wcferry import Wcf