signal.itimer() not accepting keyword arguments

[Skaperen]

19.8.2 documents signal.itimer() as taking 2 positional arguments and 1 keyword argument "interval=". calling it with that keyword argument gets an error saying it does not take keyword arguments. does anyone know what is wrong?

Output:
Traceback (most recent call last):
  File "relog.py", line 26, in <module>
    signal.setitimer(signal.ITIMER_REAL,start,interval=1.0)
TypeError: setitimer() takes no keyword arguments

10.8.2 shows:

Output:
signal.setitimer(which,seconds,interval=0.0)

[Larz60+]

did you inadvertently name something setitimer?

[Skaperen]

no. i used signal.setitimer explicitly. i have not attempted to alter attribute of the signal module.