I happens to have a instance where some data is in form of NaN(Not a Number). When converted into decimal, and I have to filter those.
In many language and the latest python is a method or function in form of. is_nan or isnan, to check it. I happen to be unlucky enough to have python 2.4 that don't have that. Fortunately there is a way to handle this. http://en.wikipedia.org/wiki/NaN As some might already know, Basically the idea is, for x is NaN then x == x is false. in python you can test it here f = float("NaN") if f == f: print "this should not print" or in decimal module from decimal import * d = Decimal("NaN") if d == d: print "this should not print too" yes, it not as useful now as newer python version provide a is_nan method, which is more intuitive. -- To unsubscribe from and detail about this group http://portal.mosc.my/osdc-my-mailing-list-information MOSC2011 http://fb.me/mosc2011 and http://portal.mosc.my/
