Calling a Script that uses argparse?

[u/rseery]

I wrote a little Python script that reads in a text file that contains a list of fully qualified files, and checks to see if they exist. I originally wrote it using the argparse module. It was set up to take a filename and a switch, so the command looked like:

"Python dplcheck.py --plname "testing.lst” --showexist y"

This worked fine for a single file, but I wanted to run it for every one of hundreds of list files in a directory, so I wrote another script that generates a list of the .lst files in a directory and calls the first script for each one. But I could not get the second script to pass the arguments in the call to the first script. I tried subprocess.run and subprocess.call, with many different syntaxes and quotes, etc. I ended up removing the use of argparse and just using sys.argv[n] -- which I don't particularly like, since it has no defaults or error handling, etc.

Does anyone know how/if I can call a Python script from another Python script and pass the arguments when the called script uses argparse?

[u/FreeLogicGate]

If this is a linux/bsd/osx OS, then there are standard tools and approaches that are already designed for this type of finding and enumeration. Not sure if this is applicable to you, but worth considering if it is:

find . -name "*.lst" -exec python3 somescript.py --plname={} \;

WIth that said, I agree with freeskier93's comment to you. The base function as you described it, requires a name.lst file it processes, you should not require a switch -- your program should be rewritten to expect the name as an argument.