On Sunday 19 June 2011 14:23:25 col speed wrote: > On 19 June 2011 14:46, Lisi <lisi.re...@gmail.com> wrote: > > On Sunday 19 June 2011 08:39:43 Alan Gauld wrote: > > > "Lisi" <lisi.re...@gmail.com> wrote > > > > > > > It does indeed. Thank you, both of you. I have clearly not got the > > > > terms > > > > command, method, function (and feature?) clearly sorted out in my > > > > mind, so > > > > that is obviously where I need to go. I am supposed to be > > > > researching > > > > import, but I have not yet succeeded in seeing why it is a problem. > > > > So I'll > > > > switch to looking up method, function etc. > > > > > > Add "callable" to your list of search terms. > > > Python has the concept of "callable objects" and > > > you can call a callable by using parentheses. > > > You can also test whether an object is callable > > > or not: > > > > > > for obj in list_of_objects: > > > if callable(obj): > > > print obj() # call obj first > > > else: > > > print obj # just use the obj value > > > > > > HTH, > > > > Thank you! > > > > Lisi > > > > _______________________________________________ > > Tutor maillist - Tutor@python.org > > To unsubscribe or change subscription options: > > http://mail.python.org/mailman/listinfo/tutor > > A good way to learn is making mistakes(in language it's the *only* way). I > don't think I will mistake variable_name with "variable_name" in the near > future! > I downloaded a text file of prime numbers - lots of them. Being clever(!), > I knew they were strs and I had to convert them to ints, so: > 1. I put them all in memory - first mistake, but not fatal > 2. I, very cleverly(I thought) used a list comprehension to convert them to > ints - OK > 3. I did something like: > for prime in tooManyPrimes: > f.write("prime") > > I did this with about 6 files!
!! ;-) Thank you for the marvellous mental image! Prime numbers will never be the same again. Lisi _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
