Script to verify that destination is not mising any photos from source

photo_verify.py

#!/usr/bin/python
""" Script to verify that destination is not mising any files from source """
import os
import sys

FILE_TYPES = ['.NEF', '.JPG', '.MTS']

def get_all_files(path, filters=()):
    """
    Iterates over all files in path

    filters is a list of file extensions to match (uppercase)
    """
    for root, _, filelist in os.walk(path):
        for name in filelist:
            if os.path.splitext(name)[1].upper() in filters:
                yield os.path.join(root, name)

def verify_no_missing_files(path1, path2):
    """
    Verifies that there are no files in path1 that are missing from path2
    """
    print "Note: this only looks for the following extensions:", \
                 ",".join(FILE_TYPES)
    files1_dict = {}
    all_files1 = list(get_all_files(path1, FILE_TYPES))
    files1 = set([os.path.split(f)[1].lower() for f in all_files1])
    for f in all_files1:
        key = os.path.split(f)[1].lower()
        files1_dict[key] = f
    files2 = set([os.path.split(f)[1].lower() \
                  for f in get_all_files(path2, FILE_TYPES)])
    print "Path 1:", path1, "({0} files)".format(len(files1))
    print "Path 2:", path2, "({0} files)".format(len(files2))
    missing_files = list(files1 - files2)
    missing_files.sort()
    print "The following files from Path 1 are missing in Path 2:"
    for missing_file in missing_files:
        print files1_dict[missing_file]

def main():
    """
    Main entry point. Parses command line options
    """
    path1 = os.path.abspath(sys.argv[1])
    path2 = os.path.abspath(sys.argv[2])
    verify_no_missing_files(path1, path2)

if __name__ == "__main__":
    main()