Habnabit posted:

Man you might as well make a useful decorator, like one that adds TCO to functions.

It was pretty fun to write.

tripwire posted:

Wow, this is really cool! Do you think people would get pissed off if I used this decorator freely in projects like it was a built-in?

Habnabit posted:

Well, the resulting bytecode really isn't that bad! The hack itself isn't too pretty, and it has a few restrictions on how the function has to be defined and called, but I like it.

Guido van Rossum posted:

And there's the rub: there's no way to make a Rube Goldberg language feature appear simple. Features of a programming language, whether syntactic or semantic, are all part of the language's user interface. And a user interface can handle only so much complexity or it becomes unusable. This is also the reason why Python will never have continuations, and even why I'm uninterested in optimizing tail recursion. But that's for another installment.

GregNorc posted:

code:

lovemachine:python gregnorc$ python hackjack.py 
Traceback (most recent call last):
  File "hackjack.py", line 8, in <module>
    create_deck();
  File "hackjack.py", line 4, in create_deck
    for value in xrange(1, 14): #ace (1) --> King(13)
NameError: global name 'xrange' is not defined

Habnabit posted:

Well, the resulting bytecode really isn't that bad! The hack itself isn't too pretty, and it has a few restrictions on how the function has to be defined and called, but I like it.

GregNorc posted:

that solved it but printing the list gives me an error

GregNorc posted:

Oops, no I didn't.

I put it in as a function but now it tells me "NameError: name 'deck' is not defined". Which seems odd since I just called the create_deck function so it should exist.

tripwire posted:

... and as Guido van Rossum says, adding in tail call optimization at the very least complicates backtraces, but even if that were fixed it would still be unacceptable to Guido: ideologically it prioritizes extended functionality over legibility and ease of use.

quote:

I still think though that if you are going to call the language multi-paradigm, you still provide some minor facilities to ease the use of things people might want to experiment with, regardless of whether or not that paradigm is deemed "unpythonic".

quote:

I admit there might be a risk of the language becoming a bit more like perl, in that there would be multiple ways of accomplishing the same thing with similar efficiency as opposed to the pythonic maxim of only having one obvious best way to do things.

So what though? If it increases the number of people using python by making it more accommodating to a wide variety of styles and backgrounds its better for everyone, as far as I can see.

nbv4 posted:

When I type something, the text doesn't show up on the screen. The text is there, I just can't see it. This is very annoying. The only way to fix it is to crtl+d, then relaunch gnome-terminal. This happens with urxvt as well as gnome-terminal. Is this a known issue, and if so are there work arounds?

Thermopyle posted:

As a fairly novice programmer who's beginning to write more complex pieces of code, I'd like more advanced programmers to look at my code and tell me how badly I've hosed up.

I've currently got a class I'm writing that takes a filename of a downloaded TV show and tries to parse out the episode and season number. It's about 100 lines long so far.

tef posted:

That and there is almost no reason to make it a class over a function that returns a string

Thermopyle posted:

As a fairly novice programmer who's beginning to write more complex pieces of code, I'd like more advanced programmers to look at my code and tell me how badly I've hosed up.

I've currently got a class I'm writing that takes a filename of a downloaded TV show and tries to parse out the episode and season number. It's about 100 lines long so far.

Is there a good site out there focusing on hooking up programmers who are willing to look at other people's code? Would someone here like to look at it and make some comments for me?

edit: Hell, i'll throw it up on pastebin and if someone wants to look they can just do it....

http://pastebin.com/ma24c43

sample use:

code:

file = r"Doctor Who 070 - 11x01-04 - The Time Warrior (complete).avi"

show = TV_Show(file)
print show.parse_name()

GregNorc posted:

Everything I've seen either assumes no prior knowledge and spends page after page explaining really simple things like the difference between int and float, or assume I'm an expert at programming who's just never used python before.

If you have any suggestions on what to read I'll definitely check them out before moving any further on this project.

GregNorc posted:

ATLbeer's solution was pretty cool but I seperated creating the deck and shuffling it into two functions so it's a bit easier to read (right now I wanna work on the basics before I try anything too complex)

However when I run this code:

code:

1 #!/usr/bin/python
  2 from random import * #loads built in shuffle function
  3 
  4 def create_deck():
  5         deck = []
  6         for suit in ('Hearts', 'Clubs','Spades','Diamonds'):
  7                 for value in range(1, 14): #ace (1) --> King(13)
  8                         deck.append((suit, value))
  9         return deck;    
 10         
 11 def shuffle_deck(deck):
 12         deck = create_deck
 13         shuffle(deck)
 14         return deck_r
 15         
 16 deck_r = shuffle() #deck_r = deck random 17 print(deck_r);

I get the following error:

code:

Traceback (most recent call last):
  File "hackjack.py", line 17, in <module>
    deck_r = shuffle() #deck_r = deck random
TypeError: shuffle() takes at least 2 positional arguments (1 given)

Which doesn't really make sense to me, I went to the python documentation and it says that only one argument is required to shuffle, and that the other is optional:

http://docs.python.org/3.1/library/random.html:

GregNorc posted:

outlier posted:

Woah.

...lots of really useful feedback...

tef posted:

That and there is almost no reason to make it a class over a function that returns a string

Lurchington posted:

I've been fooling around with TV Show name parsing for a LONG time, and depending on how much you delve into it, you can see all my work at Keasby's google code repo.

BeefofAges posted:

However, it had some issues, like the fact that the GUI froze every time the program was actually doing anything. Does this just mean that I should have created new threads for things besides the GUI, or was I doing something else wrong?

BeefofAges posted:

I want to learn how to use PyQt, because it actually has a utility for building GUIs instead of having to hand-code them. However, there don't seem to be any good PyQt tutorials out there, and the documentation I can find is a confusing mix of Python and C++.

BeefofAges posted:

I want to learn how to use PyQt, because it actually has a utility for building GUIs instead of having to hand-code them. However, there don't seem to be any good PyQt tutorials out there, and the documentation I can find is a confusing mix of Python and C++.