[Tutor] Learning a Language
Boykie Mackay
boykie.mackay at gmail.com
Mon Sep 24 00:08:32 CEST 2007
You could also try the showmedo videos at:
http://showmedo.com/videos/python
I started with Java and am still learning Java but after just a few days
of learning python I knew more about programming in python than I knew
about in Java.I have also found it helpful trying out some of the
challenges such as those at:
http://www.pythonchallenge.com/
http://www.spoj.pl/
If you select a problem you can research using the google and the
resources mentioned and try to find a solution.I have found it difficult
to learn by just reading a book and prefer having a problem at hand,then
using the book or other resources to try and solve the problem.
Hope the above helps.
The videos are simple clear and will have you programming in no time!
On Sun, 2007-09-23 at 13:59 -0400, Michael Langford wrote:
> First off, please don't pick a random message and reply to it. Please
> send an email directly to tutor at python.org if you have a new
> conversation topic. Some people's mail readers group emails together
> by what email you hit reply on, so it will put your email with
> messages it doesn't really belong with.
>
> That said: You're in luck, python is PERFECT for you. Javascript is
> quite a bit harder than python to do, especially for many sorts of
> project. I'd also say python has a lower barrier to entry than Java as
> well.
>
> I'm primarily a programmer, so I used Dive into Python to get started
> (4 years ago). Now this is a short PDF for programmers on python, but
> its still a good, short intro to people who aren't.
> http://www.diveintopython.org
>
> I've also went through some of "Learning Python". A new edition is
> coming out in about 10 days, and I'd suggest you'd get it and go
> through the exercises. Don't read them, actually type them in (don't
> copy and paste), and then fiddle with them to do something different
> with them. My wife (who does marketing for a living, and doesn't
> program except for the occasional VBA script) is starting this book
> (using the old one until the new one comes in):
> http://snipurl.com/learningpython
>
> Another approach, one that I use from time to time to pick up a topic,
> is to snarf down the course exercises of a college course that is
> posted on the web. For instance, Georgia Tech's intro to programming
> course is on the web for all to see at:
> http://www-static.cc.gatech.edu/classes/AY2008/cs1301_fall/homework.html
>
> It may be easier to go through a past semester (as it will have all
> the homeworks up there for you to do):
> http://www-static.cc.gatech.edu/classes/AY2007/cs1301_spring/
>
> One nice thing about going through the course work is that they're
> trying to teach programming, and just happen to be using python. That
> approach means you'll get the most important, general skills out of
> it. (That course or harder ones is required for all undergrads at that
> institution, so I expect you'll be able to do its coursework).
>
> --Michael
>
> --
> Michael Langford
> Phone: 404-386-0495
> Consulting: http://www.TierOneDesign.com/
> Entertaining: http://www.ThisIsYourCruiseDirectorSpeaking.com
>
> On 9/23/07, Daniel Kavic <macsareback at mac.com> wrote:
> Ok I have been a multimedia major for a few years now. I have
> tried
> javascript and that was bad, Java is just too difficult, so I
> joined
> this mailing list a while back. I have been frustrated because
> I just
> don't get entirely how OOProgramming works and how to actually
> write
> the stuff correctly. I have a hard time programming and I wish
> I
> could be better at knowing at least one language. I need a
> really
> good book or something to explain this to me. I am not the
> best in math
> On Sep 22, 2007, at 12:46 PM, Kent Johnson wrote:
>
> > Ricardo Aráoz wrote:
> >> Kent Johnson wrote:
> >
> >>> What version of Python are you using? When I try this
> program it
> >>> prints
> >>
> >> Py 0.9.5
> >> Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310
> 32 bit
> >> (Intel)] on win32
> >>
> >> I thought it might be you were trying the class with the
> list init
> >> call
> >> but I tried it and works the same way.
> >> Was using PyAlaMode, tried it using IDLE and it works like
> yours,
> >> probably a bug of PyAlaMode.
> >
> > My guess is PyAlaMode is trying to introspect the objects in
> some way
> > and that is causing the extra access (to non-existent
> attributes).
> >
> >>> class CallCounter(object):
> >>> def __init__(self, delegate):
> >>> self._delegate = delegate
> >>> self.calls = 0
> >>> def __getattr__(self, name):
> >>> value = getattr(self._delegate, name)
> >>> if callable(value):
> >>> self.calls += 1
> >>> return value
> >>>
> >>> a = CallCounter(list())
> >>
> >> Sadly :
> >>>>> a = CallCounter(list())
> >>>>> a.append(1)
> >>>>> a.calls
> >> 2
> >>>>> a.append(2)
> >>>>> a.append(3)
> >>>>> a.calls
> >> 5
> >>>>> a[3]
> >>
> >> Traceback (most recent call last):
> >> File "<pyshell#15>", line 1, in <module>
> >> a[3]
> >> TypeError: 'CallCounter' object is unindexable
> >
> > Hmm. The problem is that new-style classes don't look up
> special
> > methods
> > on instances, just in the class itself.
> >
> > There is some discussion here, it looks a bit ugly:
> >
> http://groups.google.com/group/comp.lang.python/browse_thread/
> > thread/c5bb6496970b5c5a?hl=en&tvc=2
> > Alex Martelli's second response proposes a solution that
> overrides
> > __new__() to create a custom class for each wrapper.
> >
> > There might be some help here too, I haven't read it
> closely:
> > http://tinyurl.com/25lx5t
> >
> > The code works if CallCounter is an old-style class.
> >
> > Kent
> > _______________________________________________
> > Tutor maillist - Tutor at python.org
> > http://mail.python.org/mailman/listinfo/tutor
>
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