# create a file named index.html # and insert links to every html file in the # directory that was passed as a command line argument import sys import os from pathlib import Path # check if the user supplied the correct number of command line arguments arglen = len(sys.argv) if arglen !=2 and arglen != 4: print("Usage: python index.py htmlfilesdirectory [--listen] [port]") sys.exit(1) listen = False port = "8000" if arglen == 4: if sys.argv[2] == "--listen": listen = True port = sys.argv[3] else: print("Usage: python index.py htmlfilesdirectory [--listen] [port]") sys.exit(1) # set the directory from the command line argument dir = sys.argv[1] # create a file named index.html inside the directory that was passed as a command line argument outfile = open(dir + "/index.html", "w") #write a tag to the file outfile.write("") # insert links to every html file in the # directory that was passed as a command line argument # Files that start with "page" should be the first ones in the list for file in sorted(os.listdir(dir)): if file.endswith(".html"): # skip index.html if file == "index.html": continue # write the link to the html file # extract the text inside the title tag in the html file as a string title = Path(dir + "/" + file).read_text().split("