import sysout of hello function.- arguments should be converted to int.
- String literal that contain
'should be escaped or should be surrouned by". - Did you invoke the program with
python hello.py <some-number> <some-number>in command line?
import sys
def hello(a,b):
print "hello and that's your sum:", a + b
if __name__ == "__main__":
a = int(sys.argv[1])
b = int(sys.argv[2])
hello(a, b)
Medium
medium.com › @evaGachirwa › running-python-script-with-arguments-in-the-command-line-93dfa5f10eff
Running Python script with Arguments in the command line | by Eva Mwangi | Medium
April 22, 2023 - The sys module provides functions and variables to manipulate Python’s runtime environment. Through sys.argv arguments are passed from the command line to the Python script.
Top answer 1 of 10
105
import sysout of hello function.- arguments should be converted to int.
- String literal that contain
'should be escaped or should be surrouned by". - Did you invoke the program with
python hello.py <some-number> <some-number>in command line?
import sys
def hello(a,b):
print "hello and that's your sum:", a + b
if __name__ == "__main__":
a = int(sys.argv[1])
b = int(sys.argv[2])
hello(a, b)
2 of 10
41
I found this thread looking for information about dealing with parameters; this easy guide was so cool:
import argparse
parser = argparse.ArgumentParser(description='Script so useful.')
parser.add_argument("--opt1", type=int, default=1)
parser.add_argument("--opt2")
args = parser.parse_args()
opt1_value = args.opt1
opt2_value = args.opt2
runs like:
python myScript.py --opt2 = 'hi'
Modifying Python Script to Accept Command Line Arguments?
https://docs.python.org/3/library/argparse.html More on reddit.com
5
2
March 3, 2024Passing argument to function from command line
My son wrote a command line program in ruby for me. I want to convert it to python. To run the program he has done this on the command line; “./myProgram.rb ‘argument’”. Then the 'argument ’ is passed into the program to be processed. I want to do the same in python. More on discuss.python.org
8
0
June 25, 2025Is it possible to pass arguments into a Python script? - Unix & Linux Stack Exchange
Searching google for passing arguments to python script brings this post. ... Yep, that works. For some reason, indexing does not start at 0. So sys.argv[0] is equal to nothing ... You can actually put an abitrary number of arguments in the command line. argv will be a list with the arguments. More on unix.stackexchange.com
How to launch python script with arguments
Hello, I've tried to launch a python script using the "Execute Shell Scrip/Task" or "Run Real JavaScript" but I don't know how to pass my variable (generated by user input) to my python script as an argument. More on community.folivora.ai
1
0
May 24, 2020Videos
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Simple Command Line Arguments in Python - YouTube
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Python - Command Line Arguments | sys.argv - YouTube
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How to do Python Scripting (run a python py file) - YouTube
Tutorialspoint
tutorialspoint.com › python › python_command_line_arguments.htm
Python - Command-Line Arguments
C:\Python311>python parser1.py C:\Python311>python parser1.py -h usage: parser1.py [-h] sample argument parser options: -h, --help show this help message and exit · The second command line usage gives −help option which produces a help message as shown. The −help parameter is available by default. Now let us define an argument which is mandatory for the script to run and if not given script should throw error.
Tutorials24x7
tutorials24x7.com › python › run-another-python-script-with-arguments-in-python-for-optimal-execution
Run Python scripts with arguments for optimal execution. Learn how.
April 29, 2024 - You can also run a Python script from another script using exec. The exec function in Python executes dynamically created Python code or scripts. caller_script.py: # First define arguments arg1 = "tutorial" arg2 = "for" arg3 = "developers" # Second, execute called script along with the arguments exec(open("called_script.py").read(), { 'arg1': arg1, 'arg2': arg2, 'arg3': arg3})
Real Python
realpython.com › python-command-line-arguments
Python Command-Line Arguments – Real Python
August 27, 2023 - If your Python version is less than 3.8, then simply remove the equals sign (=) in both f-strings to allow the program to execute successfully. The output will only display the value of the variables, not their names. Execute the script argv.py above with a list of arbitrary arguments as follows:
GeeksforGeeks
geeksforgeeks.org › python › how-to-run-another-python-script-with-arguments-in-python
How to Run Another Python script with Arguments in Python - GeeksforGeeks
July 23, 2025 - Running a Python script from another ... This process involves using a subprocess or os module to execute the external script, and passing arguments can be achieved by appending them to the command line....
Medium
medium.com › @BetterEverything › run-python-script-from-command-line-with-keyword-arguments-9c78cafd0e05
Run Python Script from Command Line with Keyword Arguments | by Better Everything | Medium
August 13, 2024 - Run Python Script from Command Line with Keyword Arguments Learn to pass keyword arguments — aka named arguments — to a Python file when running it from command line. Passing arguments and …
Reddit
reddit.com › r/learnpython › modifying python script to accept command line arguments?
r/learnpython on Reddit: Modifying Python Script to Accept Command Line Arguments?
March 3, 2024 -
I am trying to modify an already existing code (https://github.com/ohyicong/decrypt-chrome-passwords/blob/main/decrypt_chrome_password.py) to take in command line arguments an example: python script.py "path_to_Local_State_file" "path_to_Login_Data_file" I think that this should be a pretty simple fix but chatGPT is not giving me the correct code when I test it how should I approach this.
Python.org
discuss.python.org › python help
Passing argument to function from command line - Python Help - Discussions on Python.org
June 25, 2025 - My son wrote a command line program in ruby for me. I want to convert it to python. To run the program he has done this on the command line; “./myProgram.rb ‘argument’”. Then the 'argument ’ is passed into the progra…
Top answer 1 of 3
64
This worked for me:
import sys
firstarg=sys.argv[1]
secondarg=sys.argv[2]
thirdarg=sys.argv[3]
2 of 3
5
You can use the argv from sys
from sys import argv
arg1, arg2, arg3, ... = argv
You can actually put an abitrary number of arguments in the command line. argv will be a list with the arguments. Thus it can also be called as arg1 = sys.argv[0] arg2 = sys.argv[1] . . .
Keep also in mind that sys.argv[0] is simply the name of your python program. Additionally, the "eval" and "exec" functions are nice when you use command line input. Usually, everything in the command line is interpreted as a string. So, if you want to give a formula in the command line you use eval().
>>> x = 1
>>> print eval('x+1')
2
LabEx
labex.io › tutorials › python-how-to-execute-scripts-with-parameters-418940
How to execute scripts with parameters | LabEx
Learn essential Python script parameter techniques, explore command-line argument parsing, and master script execution with flexible input management strategies.
Analytics Vidhya
analyticsvidhya.com › home › 3 easy ways to handle command line arguments in python
3 Easy Ways to Handle Command Line Arguments in Python
January 15, 2025 - Command line arguments are a powerful tool for making your Python scripts more flexible and reusable. They allow you to pass args to python script different inputs to your script each time you run it, making it more versatile. We’ve explored three easy ways to handle command line arguments – using sys.argv, the getopt module, and the argparse module.
Medium
moez-62905.medium.com › the-ultimate-guide-to-command-line-arguments-in-python-scripts-61c49c90e0b3
The Ultimate Guide to Command Line Arguments in Python Scripts | by Moez Ali | Medium
April 18, 2023 - They allow users to customize the behavior of the program without modifying its source code. Command-line arguments are used extensively in the Unix/Linux command-line interface and are also commonly used in scripting languages like Python. Compared to other types of user input like prompts and web forms, command-line arguments are more efficient and can be automated easily. They can also be used to run scripts in batch mode, without the need for user interaction.
OpenSourceOptions
opensourceoptions.com › how-to-pass-arguments-to-a-python-script-from-the-command-line
How to Pass Arguments to a Python Script from the Command Line – OpenSourceOptions
The argv member of sys (sys.argv) will store all the information in the command line entry and can be accessed inside the Python script. Python’s getopt module can also be used to parse named arguments. Let’s go through some examples. To follow these examples, you’ll need to have Python installed on your system. If you don’t have Python installed, you can follow the tutorial in my FREE course to get you set up with an easy, reliable installation.
Educative
educative.io › answers › command-line-arguments-in-python
Command-line arguments in Python
In the code below, press the run button and then try running this script: ... # necessary library to ensure command is read in terminal. import sys #sys.argv contains arguments which are input in the terminal. print ('Number of arguments:',len(sys.argv)) # Arguments are printed as a list print ('Arguments:', str(sys.argv)) print(sys.argv[0]) #will print main.py · The len(sys.argv) function returns the number of arguments. In our case, it returns 4 because we have passed four arguments: ... Without the sys library, this will give an error.
Stanford CS
cs.stanford.edu › people › nick › py › python-main.html
Python main() - Command Line Arguments
Command line arguments like -affirm often select a mode or option for the run of the program, and these options typically begin with a dash as we have here. With the -hello option, the program prints a plain hello like this: ... With the -n option, the program prints the name a number of times, like this. $ python3 affirm.py -n 10 Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie $ python3 affirm.py -n 100 Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Maggie Ma
BetterTouchTool Community
community.folivora.ai › configuration help & general discussion
How to launch python script with arguments - Configuration Help & General Discussion - BetterTouchTool Community
May 24, 2020 - Hello, I've tried to launch a python script using the "Execute Shell Scrip/Task" or "Run Real JavaScript" but I don't know how to pass my variable (generated by user input) to my python script as an argument.
GeeksforGeeks
geeksforgeeks.org › python › command-line-arguments-in-python
Command Line Arguments in Python - GeeksforGeeks
Comes with a built-in -h / --help flag. ... Since no arguments are defined, the script only supports the default -h/--help option. ... import argparse parser = argparse.ArgumentParser(description="Demo of argparse") parser.parse_args() ... ArgumentParser(description=...): creates a parser object. The description is shown when you use the help option. parse_args(): processes the arguments given when running the script.
Published December 17, 2025
UiPath Community
forum.uipath.com › help › activities
Argument passing in python script - Activities - UiPath Community Forum
Hey, I’m working with the invoke python method in UIPaths I want to pass 3 arg to python fuction 2 string and one python obj how can I do that??
Published September 22, 2023
Top answer 1 of 2
21
You can also use the sys module. Here is an example :
import sys
first_arg = sys.argv[1]
second_arg = sys.argv[2]
def greetings(word1=first_arg, word2=second_arg):
print("{} {}".format(word1, word2))
if __name__ == "__main__":
greetings()
greetings("Bonjour", "monde")
It has the behavior your are looking for :
$ python parse_args.py Hello world
Hello world
Bonjour monde
2 of 2
2
Python provides more than one way to parse arguments. The best choice is using the argparse module, which has many features you can use.
So you have to parse arguments in your code and try to catch and fetch the arguments inside your code.
You can't just pass arguments through terminal without parsing them from your code.