Chris Mellon wrote: > On 28 Dec 2006 08:40:02 -0800, jonathan.beckett > <[EMAIL PROTECTED]> wrote: > > Hi all, > > > > While working on support at work, I have been picking away at Python - > > because I think it could be a valuable scripting tool for building > > utilities from. I have been reading the python.org tutorials, and > > playing around with some basic code, but I have ended up with a few > > questions that probably have straightforward answers - any quick > > explanations or assistance would be fantastic... > > > > > > Question 1... > > Given the code below, why does the count method return what it does? > > How *should* you call the count method? > > a = [] > > a.append(1) > > print a.count > > > > print a.count(). There's a "Python for VB programmers" out there > somewhere, see if you can find it. In python, functions (and methods > which are special cases of functions) are first class objects, so > you're printing the function object, not calling it. > > > > > Question 2... > > What is the correct way of looping through a list object in a class via > > a method of it? (I've hit all sorts of errors picking away at this, and > > none of the tutorials I've found so far cover it very well) - apologies > > for the arbitrary class - it's the first example I thought up... > > > > class Gun: > > Shells = 10 > > > > class Battleship: > > Gun1 = Gun() > > Gun2 = Gun() > > Guns = [Gun1,Gun2] > > > > def getShellsLeft(self): > > NumShells = 0 > > for aGun in Guns: > > NumShells = NumShells + aGun.Shells > > return NumShells > > > > Bizmark = Battleship() > > > > print Bizmark.getShellsLeft() > > > > > > In the above code, I guess I'm just asking for the *correct* way to do > > these simple kinds of things... > > > > You have the right idea but you've got your object instantiation > wrong. As I write this, I see an email from Grant Edwards that sums > things up nicely, I'll let him explain it. > > I suggest working through the Python tutorial and Dive Into Python, > which will introduce you to the concepts you're getting wrong here. > > > -- > > http://mail.python.org/mailman/listinfo/python-list > >
I'm not a VB programmer :) I'm just tooling around with Python while I have time, figuring out how the syntax hangs together before I start trying to do anything remotely clever with it. I normally work with PHP, C#, Javascript, and the odd bit of C++, but find myself doing christmas support, so am looking for something to pick away at until the phone rings :) One thing I would like to do is play with pySQLite, which looks like it might be very handy indeed for making migration tools... -- http://mail.python.org/mailman/listinfo/python-list
