Check if there same images in the folder

check_same_files.py

#coding: utf-8
import os
import hashlib
my_path = os.path.dirname(os.path.abspath(__file__))+'/qrcodes'

def get_all_files_from_directory():
    files = os.listdir(my_path)
    return files

def caculate_file_md5(file):
    path = my_path+'/'+file
    m5 = md5_for_file(path)
    return file, m5

def md5_for_file(path):
    return hashlib.md5(open(path, 'rb').read()).hexdigest()

i = 0
results = {
}
files =  get_all_files_from_directory()
for x in files:
    i+=1
    f,m =  caculate_file_md5(x)
    if m in results:
        print "file exits:",f ,"\nsame as :",results[m]
        print "-"*50
    else:
        results[m]=f
print "total files:",i