1. A new reference is returned and assigned to bytes.
   

   Pillow/src/Tk/tkImaging.c

   Line 371 in 68e39cb

   bytes = PyUnicode_EncodeFSDefault(fname);

2. Function returns without decreasing the refcnt of bytes.
   

   Pillow/src/Tk/tkImaging.c

   Line 375 in 68e39cb

   return PyBytes_AsString(bytes);

Internal Report ID: c6d448