diff --git a/binding/python/ReadMe.md b/binding/python/ReadMe.md
index fbf485e..281c7d5 100644
--- a/binding/python/ReadMe.md
+++ b/binding/python/ReadMe.md
@@ -1,5 +1,8 @@
 # ip2region xdb python 查询客户端实现
 
+# 版本兼容
+该实现兼容 Python `>=` **`3.7`**
+
 # 使用方式
 
 ### 安装 `py-ip2region`
diff --git a/binding/python/ip2region/searcher.py b/binding/python/ip2region/searcher.py
index 243e033..7e6b445 100644
--- a/binding/python/ip2region/searcher.py
+++ b/binding/python/ip2region/searcher.py
@@ -7,6 +7,7 @@
 
 import io
 import ip2region.util as util
+from typing import Union
 
 class Searcher(object):
     '''
@@ -33,7 +34,7 @@ class Searcher(object):
     def get_io_count(self):
         return self.__io_count
 
-    def search(self, ip: bytes | str):
+    def search(self, ip: Union[bytes, str]):
         # check and parse the string ip
         ip_bytes = None
         if isinstance(ip, str):
diff --git a/binding/python/ip2region/util.py b/binding/python/ip2region/util.py
index e9d0b2b..e897a96 100644
--- a/binding/python/ip2region/util.py
+++ b/binding/python/ip2region/util.py
@@ -8,7 +8,7 @@
 import io
 import os
 import ipaddress
-from collections.abc import Callable
+from typing import Callable
 
 # global constants
 XdbStructure20 = 2
diff --git a/binding/python/setup.py b/binding/python/setup.py
index 5710823..e43d77a 100644
--- a/binding/python/setup.py
+++ b/binding/python/setup.py
@@ -2,7 +2,7 @@
 
 setuptools.setup(
     name="py-ip2region",
-    version="3.0.1",
+    version="3.0.2",
     description="ip2region official python binding with both IPv4 and IPv6 supported",
     long_description=open("ReadMe.md", encoding='utf-8').read(),
     long_description_content_type='text/markdown',