Challenge 1 Solution

gistfile1.py

import os
import shutil

def make_dir(name):
    raise Exception() 
    if not os.path.exists("target /" + name):
        os.mkdir("target /" + name)

def main():
    file_list = os.listdir("./files")
    for filename in file_list:
        first_letter = filename[0]
        make_dir(first_letter)
        src = "./files/" + filename
        dst = first_letter
        shutil.move(src, "target/" + dst)

main()