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I am trying to debug a script which takes command line arguments as an input. Arguments are text files in the same directory. Script gets file names from sys.argv list. My problem is I cannot launch the script with arguments in pycharm.
I have tried to enter arguments into "Script parameters" field in "Run" > "Edit configuration" menu like so:
-s'file1.txt', -s'file2.txt' But it did not work. How do I launch my script with arguments?
P.S. I am on Ubuntu
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sys. argv is the list of commandline arguments passed to the Python program. argv represents all the items that come along via the command line input, it's basically an array holding the command line arguments of our program. Don't forget that the counting starts at zero (0) not one (1).
To pass command line arguments, we typically define main() with two arguments : first argument is the number of command line arguments and second is list of command-line arguments. The value of argc should be non negative. argv(ARGument Vector) is array of character pointers listing all the arguments.
Python exposes a mechanism to capture and extract your Python command line arguments. These values can be used to modify the behavior of a program. For example, if your program processes data read from a file, then you can pass the name of the file to your program, rather than hard-coding the value in your source code.
Using Python3 Command Line Arguments You can use the command line arguments by using the sys. argv[] array. The first index of the array consists of the python script file name. And from the second position, you'll have the command line arguments passed while running the python script.
For the sake of others who are wondering on how to get to this window. Here's how:
You can access this by clicking on Select Run/Debug Configurations (to the left of 
) and going to the Edit Configurations. A gif provided for clarity.
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In PyCharm the parameters are added in the Script Parameters as you did but, they are enclosed in double quotes "" and without specifying the Interpreter flags like -s. Those flags are specified in the Interpreter options box.
Script Parameters box contents:
"file1.txt" "file2.txt" Interpeter flags:
-s Or, visually:
Then, with a simple test file to evaluate:
if __name__ == "__main__": import sys print(sys.argv) We get the parameters we provided (with sys.argv[0] holding the script name of course):
['/Path/to/current/folder/test.py', 'file1.txt', 'file2.txt'] If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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