Python argparse組合命令和命令參數

Question

我有兩個定義的命令（爲簡潔起見，我省略瞭解析器/子分析器部分，因爲我認爲他們不需要回答問題）。

#COMMAND ARGS: Add Arguments to the final command "sacs am run [args]" 
am_run_parser.add_argument("-s", action='store_const', const='s', dest='s', help="Output statistical reporting to the console.") 
am_run_parser.add_argument("-S", action='store_const', const='S', dest='S', help="Output statistical reporting to the standard archive.") 
am_run_parser.add_argument("-t", action='store_const', const='t', dest='t', help="Output timing reporting to the console.") 
am_run_parser.add_argument("-T", action='store_const', const='T', dest='T', help="Output timing reporting to the standard archive.") 
am_run_parser.add_argument("-R", action='store_const', const='R', dest='R', help="Output reject reporting to the standard archive.") 
am_run_parser.add_argument("-b", "--bulk", type=int, nargs=1, help="MySQL Bulk Insert Quantity. Currently the default is set at " + str(defaults.bulk) + ". Theoretically, changing this value can affect how quickly inserts are performed.") 
am_run_parser.add_argument("-host", nargs=1, help="The MySQL server host to output to.") 
am_run_parser.add_argument("-port", nargs=1, help="The MySQL server port to output to.") 
am_run_parser.add_argument("-user", nargs=1, help="The MySQL server username to use.") 
am_run_parser.add_argument("-pw", nargs=1, help="The MySQL server password to use.") 
am_run_parser.add_argument("-db", nargs=1, help="The MySQL server database to use.") 
am_run_parser.set_defaults(func=am_cli_tools.am_run) 

#COMMAND ARGS: Add Arguments to the final command "sacs am get [args]" 
am_get_parser.add_argument("-a", action='store_const', const='a', dest='a', help="Get source A data for sacs am processing.") 
am_get_parser.add_argument("-b", action='store_const', const='b', dest='b', help="Get source B data for sacs am processing.") 
am_get_parser.add_argument("-c", action='store_const', const='c', dest='c', help="Get source C data for sacs am processing.") 
am_get_parser.add_argument("-r", action='store_const', const='r', dest='r', help="Get source D data for sacs am processing.") 
am_get_parser.add_argument("-t", action='store_const', const='t', dest='t', help="Get source E data for sacs am processing.") 
am_get_parser.add_argument("-R", action='store_const', const='t', dest='t', help="Run the sacs am processor using the arguments specified after the run_args flag. This will perform the 'sacs am run' command after all specified sources are gathered (review the help file for this command for additional information about argument options).") 
am_get_parser.set_defaults(func=am_cli_tools.am_get) 

正如你所看到的，我在加-R參數的囊的過程中我得到的命令。基本上，我希望能夠告訴囊在完成後運行囊運行命令，並且我想公開所有運行囊的相關參數。例如sacs am get -abcrt R -run_args -sStTRb -host www.google.com -port 22 -user IBUser -pw IBpass -db IBpoken（lol）。

當然，這些run_args只適用於-R參數。

我懷疑有更好的方法來解決這個問題。所有選項都在桌面上。這些命令在運行時（通常通過cron作業）確實需要發送電子郵件;這是我想要選擇合併命令的主要原因之一，因爲如果我不這樣做，我將不得不發送2封電子郵件，因爲這些命令必須單獨運行。我想我可以做一些其他的事情，比如寫/追加到一個文件中，併爲cron創建另一個sac am sendemail命令來運行......但是這種方法會使事情更加有序和簡潔。

Answer 1

停止尋求完美，讓困難的事情只是發送電子郵件。