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lines changed Original file line number Diff line number Diff line change 1+ # jsonpath - 通过表达式解析 JSON
Original file line number Diff line number Diff line change 1+ # retrying - 重试任务
2+
3+ [[ TOC]]
4+
5+ ## 1. 项目简介
6+
7+ ` retrying ` 是一个 Python 重试任务的工具包。
8+
9+ ``` python
10+ import random
11+ from retrying import retry
12+
13+ @retry
14+ def do_something_unreliable ():
15+ if random.randint(0 , 10 ) > 1 :
16+ raise IOError (" Broken sauce, everything is hosed!!!111one" )
17+ else :
18+ return " Awesome sauce!"
19+
20+ print (do_something_unreliable())
21+ ```
22+
23+ 还可以包含参数:
24+
25+ ``` python
26+ @retry (stop_max_attempt_number = 7 )
27+ def stop_after_7_attempts ():
28+ print (" Stopping after 7 attempts" )
29+ ```
30+
31+ 可用参数:
32+
33+ - ` stop_max_attempt_number ` :最大重试次数
34+ - ` stop_max_delay ` :重试指定在指定时间内完成
35+ - ` wait_fixed ` :固定的重试等待时间
36+ - ` wait_random_min ` :最小随机等待时间(毫秒)
37+ - ` wait_random_max ` :最大随机等待时间(毫秒)
38+ - ` wait_exponential_multiplier ` :指数等待时间的基数(毫秒)
39+ - ` wait_exponential_max ` :指数等待时间的最大值(毫秒)
40+ - ` retry_on_exception ` :传入判断异常是否重试的函数
41+ - ` wrap_exception ` :抛出错误的异常类型
42+ - ` retry_on_result ` :在结果为指定条件时重试
Original file line number Diff line number Diff line change 1+ # six - 兼容 Python 2 和 Python 3 的工具包
2+
3+ [[ TOC]]
4+
5+ ## 1. 项目简介
6+
7+ ` six ` 是一个兼容 Python 2 和 Python 3 的工具包。
Original file line number Diff line number Diff line change 1+ # Python 获取系统桌面
2+
3+ ## 1. Windows 系统
4+
5+ 通过注册表:
6+
7+ ``` python
8+ import winreg
9+
10+ def get_desktop_path () -> str :
11+ key = winreg.OpenKey(
12+ winreg.HKEY_CURRENT_USER ,
13+ " Software\\ Microsoft\\ Windows\\ CurrentVersion\\ Explorer\\ Shell Folders" ,
14+ )
15+ path = winreg.QueryValueEx(key, " Desktop" )[0 ]
16+ return path
17+ ```
18+
19+ 通过 Windows API ` SHGetFolderPathW ` :
20+
21+ ``` python
22+ import ctypes
23+
24+ def get_desktop_path () -> str :
25+ CSIDL_DESKTOPDIRECTORY = 0x 0010
26+ buf = ctypes.create_unicode_buffer(260 )
27+ ctypes.windll.shell32.SHGetFolderPathW(
28+ None ,
29+ CSIDL_DESKTOPDIRECTORY ,
30+ None ,
31+ 0 ,
32+ buf,
33+ )
34+ desktop_path = buf.value
35+ return desktop_path
36+ ```
Original file line number Diff line number Diff line change 2020 "author" : " Alex" ,
2121 "license" : " ISC" ,
2222 "devDependencies" : {
23- "@vuepress/client" : " 2.0.0-beta.63 " ,
24- "@vuepress/plugin-shiki" : " 2.0.0-beta.63 " ,
25- "@vuepress/utils" : " 2.0.0-beta.63 " ,
23+ "@vuepress/client" : " 2.0.0-beta.66 " ,
24+ "@vuepress/plugin-shiki" : " 2.0.0-beta.66 " ,
25+ "@vuepress/utils" : " 2.0.0-beta.66 " ,
2626 "vue" : " ^3.3.4" ,
27- "vuepress" : " 2.0.0-beta.63 " ,
28- "vuepress-plugin-auto-catalog" : " 2.0.0-beta.226 " ,
29- "vuepress-plugin-copy-code2" : " 2.0.0-beta.226 " ,
30- "vuepress-plugin-md-enhance" : " 2.0.0-beta.226 " ,
31- "vuepress-plugin-search-pro" : " 2.0.0-beta.226 "
27+ "vuepress" : " 2.0.0-beta.66 " ,
28+ "vuepress-plugin-auto-catalog" : " 2.0.0-beta.233 " ,
29+ "vuepress-plugin-copy-code2" : " 2.0.0-beta.233 " ,
30+ "vuepress-plugin-md-enhance" : " 2.0.0-beta.233 " ,
31+ "vuepress-plugin-search-pro" : " 2.0.0-beta.233 "
3232 }
3333}
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