Whoops, my mistake: In [5]: [not len(x) >= 2 and len(x)<=25 for x in [str(y) for y in xrange(30)]] Out [5]: [True]*10, [False]*20
But still, I'm guessing that's not the result you were looking for… On Sat, Feb 23, 2013 at 2:30 AM, Alec Taylor <alec.tayl...@gmail.com> wrote: > Out[1]: '0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 > 24 25 26 27 28 29' > > In [2]: [not len(x) >= 2 and len(x)<=25 for x in _] > Out[2]: [True]*79 # shorthand to prevent spam > > > I trust you can see the error now! > > On Sat, Feb 23, 2013 at 2:09 AM, Morten Engvoldsen <mortene...@gmail.com> > wrote: >> Hi , >> I have wrote the below code to validate a number using modulus 10 and 11: >> >> def is_valid_number(checknum, mod): >> if mod == 10: >> if not len(checknum) >= 2 and len(checknum) <=25: >> return False >> number = tuple(int(i) for i in reversed(str(checknum)) ) >> return (sum(int(num) * 2 for num in number[1::2]) % 10) == 0 >> elif mod == 11: >> if not len(checknum)!= 11: >> return False >> weights = [5, 4, 3, 2, 7, 6, 5, 4, 3, 2, 1] >> return (sum(w * int(x) for w, x in zip(weights, checknum)) % 11) == >> 0 >> >> is_valid_number("12345678217", 10) >> >> The above code is able to validate 25 length number for modulus 10 , but for >> modulus 11 i have done the validation only for 11 digit, Since for modulus >> 11 the weight should be in >> .............4,3,2,7,6, 5, 4, 3, 2, 7, 6, 5, 4, 3, 2, 1 in this format. >> >> Could you please let me know how can i validate the 25 length number for >> modulus 11 with weight ...............4,3,2,7,6, 5, 4, 3, 2, 7, 6, 5, 4, 3, >> 2, 1 in this format. >> >> Regards, >> Morten >> >> >> >> -- >> http://mail.python.org/mailman/listinfo/python-list >> -- http://mail.python.org/mailman/listinfo/python-list