How do I execute my Python script and input file from command line?

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Python

cmd

I have a text file. But I dont want to input that file in my python script directly. I want to run my python script from command line with argument which is my text file. The command line that I want is : $Python.exe script.py C:/user/text_file.txt .

What I have tried:

<pre>
import sys

def main():
    infile = sys.argv[0]
    Array = ["f1", "f2", "f3", "f4"]
    with open(infile, "r") as input_file:
    	output_list = []
    	for rec in input_file.read().splitlines():
    		rec = rec[:-3]
    		FBlist = [rec[i:i+2] for i in range(0, len(rec), 2)]
    		output_list.append(FBlist)
    		print(output_list)



main()