Help with python functions?

[kjakupak at gmail.com]

On Monday, September 23, 2013 9:56:45 AM UTC-4, Steven D'Aprano wrote: 
> On Mon, 23 Sep 2013 05:57:34 -0700, kjakupak wrote: 
> 
> Now you're done! On to the next function... 
> 
> 
> 
> -- 
> 
> Steven 

def temp(T, from_unit, to_unit): 
    conversion_table = {('c', 'k'):lambda x: x + 273.15, 
                        ('c', 'f'):lambda x: (x * (9.0/5)) + 32, 
                        ('k', 'c'):lambda x: x - 273.15, 
                        ('k', 'f'):lambda x: (x * (9.0/5)) - 459.67, 
                        ('f', 'c'):lambda x: (x - 32) * (5.0/9), 
                        ('f', 'k'):lambda x: (x + 459.67) * (5.0/9)} 
    f = conversion_table[(from_unit.lower(), to_unit.lower())] 
    return f(T) 

Would this be correct? 
Also, the temperature number had to be of type float so I feel like I did this wrong...

As for the next one, so far I've gotten:
def comp(T1, u1, T2, u2):
    if u1 > u2:
        return -1
    elif u2 > u1:
        return 1
    else:
        return 0