parameters: (f, source)
docstring: modify 4096 units at a time
docstring_summary: modify 4096 units at a time
docstring_tokens: modify 4096 units at a time
function: def modify_medium_chunks(f, source):
      """ modify 4096 units at a time """
      f.seek(0)
      for i in xrange(0, len(source), 4096):
          f.write(source[i:i+4096])
function_tokens: def modify_medium_chunks ( f , source ) : f . seek ( 0 ) for i in xrange ( 0 , len ( source ) , 4096 ) : f . write ( source [ i : i + 4096 ] )