Python - sys.argv - Command Line Argument List

sys.argv - Command Line Argument List

Q

How to retrieve command line arguments with sys.argv list?

✍: FYIcenter.com

A

If execute a Python script file with the "python" command, you can use the sys.argv list to retrieve command line arguments.

Note that the first argument, sys.argv[0], represents the Python script file name.

Here is a Python script file example, the displays command line arguments:

import sys
print("Python version: "+sys.version)
print("Command line arguments:")
for i, e in enumerate(sys.argv):
   print("   sys.argv["+str(i)+"]: "+e)

You can run it with the "python" command:

C:\fyicenter>python echo_argv.py apple orange
Python version: 3.6.2 (v3.6.2:5fd33b5, Jul  8 2017, 04:14:34) 
Command line arguments:
sys.argv[0]: echo_argv.py
sys.argv[1]: apple
sys.argv[2]: orange

⇒ 're' Module - Regular Expression Operations

⇐ Printing Python Engine Information

⇑ 'sys' Module - System Parameters and Functions

⇑⇑ Python Tutorials

2018-11-11, 367👍, 0💬

're' Module - Regular Expression Operations
Where to find tutorials on Python "re" Module? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Python "re" Module. What Is Python Module 're' re.search() - Search for First Match re.findall() - Find All Matches re.match() - Match from String Be... 2018-11-11, 317👍, 0💬

What Is Python Module 'sys'
What Is Python module "sys"? "sys" is a Python internal module that provides access to some variables used or maintained by the interpreter and to functions that interact strongly with the interpreter. Here are some important properties and functions provided by the "sys" module: >>&am... 2018-11-11, 306👍, 0💬

What Is Python Module 're'
What Is Python module "re"? "re" is a Python internal module that provides regular expression matching and replacement operations similar to those found in Perl. Here are some important properties and functions provided by the "re" module: >>> import re >>> ... 2018-10-19, 305👍, 0💬

Printing Python Engine Information
How to print out Python engine information? Here is a Python example on how to print out Python engine information: >>> import sys >>> sys.getwindowsversion() sys.getwindowsversion(major=6, minor=1, build=7601, platform=2, service_pack='Service Pack 1') &... 2018-11-11, 286👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.