diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9fab72d..cef9e2f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,6 @@
 # 更新日志
+## [1.3.0] 2022-04-28
+- python默认使用python3来执行
 
 ## [1.2.1] 2020-11-04
 - 修复一处书写错误
diff --git a/README.md b/README.md
index 4b4eb00..74a1fea 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@
 > - .cjs
 > - .mjs
 > - .json (调用`npm start`来执行)
-> - .py
+> - .py  (默认使用`python3`)
 > - .sh
 > - .swift
 > - .ts (依赖全局安装的`ts-node`模块)
diff --git a/build_system.js b/build_system.js
index 9ba1cee..5205ac8 100644
--- a/build_system.js
+++ b/build_system.js
@@ -1,12 +1,10 @@
 /**
  * 编译系统
  *
- * @author yutent<yutent@doui.cc>
+ * @author yutent<yutent.io@gmail.com>
  * @date 2018/12/20 11:37:54
  */
 
-'use strict'
-
 const vsc = require('vscode')
 const exec = require('child_process').exec
 const path = require('path')
@@ -15,7 +13,7 @@ const kill = require('tree-kill')
 
 const log = console.log
 const std = vsc.window.createOutputChannel('build-system')
-std.out = function(msg) {
+std.out = function (msg) {
   std.appendLine(msg)
 }
 
@@ -27,7 +25,7 @@ const EXTS = {
   '.cjs': 'node',
   '.mjs': 'node',
   '.json': 'npm start',
-  '.py': 'python -u',
+  '.py': 'python3 -u',
   '.php': 'php',
   '.sh': 'bash',
   '.swift': 'swift',
diff --git a/index.js b/index.js
index 25ee750..bd60742 100644
--- a/index.js
+++ b/index.js
@@ -1,11 +1,9 @@
 /**
  * build system
- * @author yutent<yutent@doui.cc>
+ * @author yutent<yutent.io@gmail.com>
  * @date 2018/12/20 10:46:07
  */
 
-'use strict'
-
 const vsc = require('vscode')
 
 const BuildSystem = require('./build_system')
diff --git a/package.json b/package.json
index ed90b79..e80212c 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "build-system",
   "displayName": "sublime build system",
   "description": "🔥 类似sublime的Build System功能, 方便快速调试一些代码片断或想法。",
-  "version": "1.2.1",
+  "version": "1.3.0",
   "publisher": "yutent",
   "author": "Yutent [@yutent]",
   "icon": "logo.png",
diff --git a/test/Untitled-1 b/test/Untitled-1
deleted file mode 100644
index 0519ecb..0000000
--- a/test/Untitled-1
+++ /dev/null
@@ -1 +0,0 @@
- 
\ No newline at end of file