Python information and short questions megathread.

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > The Cavern of COBOL > Python information and short questions megathread.

Buffis: Apr 29, 2006; I paid for this; Fallen Rib

I don't really see the point but if I'm understanding this correctly, then this is nicer

code:

def dec(f):
    f.clowns = 1
    return f

@dec 
def f():
    print f.clowns

f() # prints 1

# ¿ Jan 9, 2008 17:18

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# ¿ May 5, 2024 11:35

Buffis: Apr 29, 2006; I paid for this; Fallen Rib

deimos posted:

Yeah but what happens if you call foo(clowns=20)?

He didnt want to be able to do that?

quote:

but I'm wondering if there's a way to do it without having to place the `clowns` argument in the function definition for `bar`.

Buffis fucked around with this message at 17:23 on Jan 9, 2008

# ¿ Jan 9, 2008 17:20

Buffis: Apr 29, 2006; I paid for this; Fallen Rib

Ferg posted:

I read this book cover-to-cover electronically, and then purchased a copy. Definitely a fantastic resource to learn the language.

Seconded. It is a really great book if you have some prior development knowledge in any other language.

# ¿ Jun 28, 2009 08:29

Buffis: Apr 29, 2006; I paid for this; Fallen Rib

Is it weird to write a program only targeting Python 3 nowadays?
I know that the migration from 2 to 3 was in a weird limbo for years, but I don't really know what the state of things is nowadays.

Want to target mainly linux and OSX, but potentially also Windows (less important). All deps are available through pip in both Python 2 and 3.
There's some things in 3 that I'd like to depend on without having to implement backwards compatibility if possible though.
The app is terminal based if that matters.

# ¿ Mar 14, 2015 10:41

Buffis: Apr 29, 2006; I paid for this; Fallen Rib

Dominoes posted:

Is there a reason why python doesn't implement numpy/matlab-style indexing with multiple keys or indices?

Ie for a list of dicts:
Python code:
adict[3, 'akey']
As a cleaner alternative to
Python code:
adict[3]['akey']

Tuples are (usually) allowed to omit the parenthesis, as in:
>>> a={}
>>> a[1, "hey"]=2
>>> a
{(1, 'hey'): 2}
>>> a[1, "hey"]
2

So the syntax mentioned above implies that a tuple is being looked up in a dict.

# ¿ Mar 26, 2015 14:32

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# ¿ May 5, 2024 11:35

Buffis: Apr 29, 2006; I paid for this; Fallen Rib

Comedy answer:

code:

class LULZ(dict):
  "Don't do this"
  def __getitem__(self, plzno):
    if type(plzno) == tuple: dict.__setitem__(self, *plzno)
    else: return dict.__getitem__(self, plzno)

d=LULZ()
d[3, 'akey']
print d[3] # outputs 'akey'

# ¿ Mar 26, 2015 14:43

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > The Cavern of COBOL > Python information and short questions megathread.