In a folder full of files, subsets of which have the same base filename but different extensions (e.g., foo.txt, foo.csv, foo.tar.gz, bar.txt, bar.csv, bar.tar.gz), create folders based on the base filename (e.g., foo, bar) and move the files into the appropriate folders.

move_files.py

### Usage:
# Copy this file into the directory containing the files, 
# open a terminal/cmd prompt in that directory, and type: 
# python move_files.py

import os

question = "Would you like to move all of the files in '" + os.getcwd() + "' into subfolders? (y/n)"

answer = raw_input(question)

if answer.lower() != "y":
    print("Exiting...")
    exit()

all_files = os.listdir(".")

files = [f for f in all_files if f != 'move_files.py'] # remove move_files.py from list of files to move.

for file in files:
    # get part of filename before first dot to use for folder name (eg. foo.tar.gz -> foo, or bar.tif.aux.xm -> bar)
    base = file.split(".")[0]
    if base == '': # ignore files that begin with .
        continue
    if not os.path.isdir(base):
        print("Creating directory '" + base + "'")
        os.mkdir(base)
    print("Moving '" + file + "' to '" + base + "'")
    os.rename(file, base + "/" + file)