def print_err ( * args , end = '\n' ) : print ( * args , end = end , file = sys . stderr ) sys . stderr . flush ( )
print to cerr in python
Similar to print but prints to stderr .
def print_err(*args, end='\n'):
    """Similar to print, but prints to stderr.
    """
    print(*args, end=end, file=sys.stderr)
    sys.stderr.flush()