python command line arguments example

1. Save the command-line arguments in the list, note that argv[0] is the name of the program itself:Import Sysprint (SYS.ARGV) print (sys.argv[1])Python argv.py localhost 3306[' argv.py ', ' localhost ', ' 3306 ']localhost2. Use Sys.stdin and fileinput to read the s

C languageIn the C language, the input parameters of the main function, argc and argv, are passed into the command-line arguments. The ARGC is of type int, indicating the number of arguments passed in the command line (ar

'****************opts********************' - Print 'opts=', opts the Print '****************args********************' - Print 'args=', args - - forOpt,arginchopts: + ifOptinch('- H','--help'): - usage () +Sys.exit (1) A elifOptinch('--f_long'): at Print '--f_long=', opt - Else: - Print '%s====>%s'%(Opt,arg) - exceptgetopt. Getopterror: - Print 'getopt error!' - usage () inSys.exit (

does it say for false and true?take the-C option to give an example,default If True, indicates that if you do not add the-C option after the script, it also has the-C behavior. when default is false, it means that the script is not followed by the-C option, there is no behavior of-C, such as Wc-l/etc/hosts, without the-c option, it does not count the characters, only the number of rows statisticsThis article comes from "Plum blossom fragrance from bi

1) Start the Python interpreter in $ python , and then import a module that will generate a . pyc file.2) Start the Python interpreter in $ python-o mode, and then import a module that will generate the optimized bytecode . pyo file.3) with the $ python-m module name (withou

The command-line arguments in Python are not the same as the shell, which is obtained by sys.argv[], sys.argv[0] is the path to the code file itself, so the parameters start at 1,Example:#!/usr/bin/env pythonImportOSImportJSONImportOS, sys#T=os.popen ("" "Netstat-natp|awk-f:

The book on a topic need to implement the function "according to the account password, copy password to the Clipboard." The account number and password are stored in the code dictionary.Problem Description:As a python novice from the code (see below) only know:1. SYS.ARGV initially contains a row of file paths.2. The account to be queried needs to be transferred to SYS.ARGV.How does it work?#! Python3#pw.py-an inssecure Password locker program.#Run Th

The acquisition of command-line parameters is useful for some functional scripts and does not write functionality to the script.Shell command-line arguments directly with $1,$2 and so on can be directly obtainedWhere $ $ represents the second argument, the first parameter of

How Python obtains command-line argumentsThis article describes the SYS in Python and the getopt module handles command-line argumentsIf you want to pass parameters to the Python script

1 # demo.py 2 # 3import sys45print sys.argv#python demo.py 11 22 33 44 55[' demo.py ', ' 11 ', ' 22 ', ' 33 ', ' 55 ']Visible, SYS.ARGV is a list, and sys.argv[0] is a file name;File operation:1[Email PROTECTED]:~/CP#python demo.py2['demo.py', 11]3 #!/usr/bin/python4 #Encoding=utf-85 ImportSYS6 7 PrintSYS.ARGV8 9FD = open ('./demo.py','R')Ten whileTrue: Oneline =Fd.readline () A if notLine : -

ImportArgparseparser= Argparse. Argumentparser (description='Real-time Filtering evaluation Script-scenario B (version 1.0)') parser.add_argument ('- Q', Required=false, metavar='Qrels', help='qrels File') parser.add_argument ('- C', Required=true, metavar='clusters', help='Cluster anotations') parser.add_argument ('- R', Required=true, metavar='Run', help='Run File') args=Parser.parse_args () File_qrels_path= VARs (args) ['Q']clusters_path= VARs (args) ['C']run_path= VARs (args) ['R']=======>>T

(socket.af_inet,socket. SOCK_STREAM) except Socket.error,e:print "Error creating socket:%s"%e sys.exit (1) #处理连接套接字异常 try: S.connect ((host,port)) except Socket.gaierror,e:print "Address-related ERror connecting to server:%s "%e sys.exit (1) except Socket.error,e:print" Connection error:%s "%e sy S.exit () #处理发送数据错误 try: #GET方法 sent to the Web site S.sendall ("GET%s http/1.0\r\n\r\n"%filename) except SOCKET.E Rror,e:print "Error sending data:%s"%e sys.exit (1) while 1:try: #接受

and their corresponding parameters.2) Treatment Method:A) import getopt, sys moduleb) parsing command-line argumentsc) Processing resultsCases:# # # The first step is simple, only need import # # #Import getopt, sys 　 # # #第二步处理方法如下 (Example of a Python handbook) # # #Tryopts, args = Getopt.getopt (sys.argv[1:], "ho:"