folder_size = 0
print(folder_path)
for (path, dirs, files) in os.walk(folder_path):
    for file in files:
        filename = os.path.join(path, file)
        folder_size += os.path.getsize(filename)
folder_size = folder_size / (1024* 1024.0)
if (folder_size < 1) :
    folder_size = round(folder_size, 5)
else :
    folder_size = round(folder_size, 2)
folder_size = str(folder_size) + " MB"
return(folder_size)