Taking lines from a line and creating a new file with shuffled lines.

s0Cq01_shuffle_lines.py

""" Takes a filename as argument 
    Creates a new file with the name
    "shuffle" appended to the original filename.
    The lines in the input are shuffled 
    and written into the new file
"""
import sys
#from s0Cq01_fileops import *
import s0Cq01_fileops 
import random

def shuffler(lines):
    """ Shuffle a list of strings Input : list of strings
    Return : a new list with original strings shuffled
    """
    lines[len(lines)-1] = lines[len(lines)-1] + "\n"
    new_lines = random.sample(lines, len(lines))
    return new_lines
    
# Get filename from command line 
def reading_CLI():
    file_name = sys.argv[1]
    file_complete_path = "C:\\Users\\Ojha\\Documents\\Python exercises\\Python Scripts\\" + file_name
    return file_name, file_complete_path

def new_file_name():
    file_name_with_extension = sys.argv[1]
    file_name = file_name_with_extension.split(".")[0]
    return file_name
    
    
# Main starts here
if __name__ == '__main__':
    file_name, file_complete_path = reading_CLI()
    FH, lines = s0Cq01_fileops.get_lines(file_complete_path) 
    FH.close()
    shuffled_lines = shuffler(lines)
    new_name = new_file_name() + "_shuffle.txt"
    s0Cq01_fileops.write_lines(new_name, shuffled_lines)