65a66,67
> 		
> 		dir_name, file_name = os.path.split(name)
68c70
<                 dot_index = name.rindex('.')
---
>                 dot_index = file_name.rindex('.')
70c72
<                 name += '_'
---
>                 file_name += '_'
72c74,75
<                 name = name[:dot_index] + '_' + name[dot_index:]
---
>                 file_name = file_name[:dot_index] + '_' + file_name[dot_index:]
>             name = os.path.join(dir_name, file_name)