Kay Schluehr <[EMAIL PROTECTED]> writes: > On 9 Nov., 07:06, Steven D'Aprano <[EMAIL PROTECTED] [...] >> In any case, the above doesn't work now, since either L1 or L2 might >> contain complex numbers. >> The sorted() trick only works because you're >> making an assumption about the kinds of things in the lists. If you want >> to be completely general, the above solution isn't guaranteed to work. > > You are right. I never used complex numbers in Python so problems were > not visible. Otherwise the following comp function in Python 2.X does > the job: > > def comp(x1, x2): > try: > if x1<x2: > return -1 > else: > return 1 > except TypeError: > if str(x1)<str(x2): > return -1 > else: > return 1 >
Sadly it fails on transitivity: >>> comp(2, 3j) -1 >>> comp(3j, True) -1 >>> comp(True, 2) -1 -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
