Comments on: Python Debugging with Decorators

By: metal29a

metal29a — Fri, 18 Sep 2009 07:02:28 +0000

a little rewritten one
[code]
def trace(func):
def wrapped(*args, **kwargs):
wrapped.level += 1
indent = ' %-2d%s' % (wrapped.level, ' ' * wrapped.level)
params = ', '.join([repr(x) for x in args]+['%s=%s' % (k, repr(kwargs[k])) for k in kwargs])
print '%s%s (%s) {' % (indent, func.__name__, params)
rv = func(*args, **kwargs)
print '%s} = %s' % (indent, rv)
wrapped.level -= 1
return rv
wrapped.level = 0
return wrapped

@trace
def comb(s, n):
return [s[:1]+x for x in comb(s[1:], n-1)]+comb(s[1:], n) if len(s) > n > 0 else [s] if len(s) == n else [[]]

@trace
def perm(s):
return [s[i:i+1]+x for i in range(len(s)) for x in perm(s[:i]+s[i+1:])] if len(s) > 1 else [s]

@trace
def fib(n):
return fib(n-1)+fib(n-2) if n > 1 else 1

perm(range(1, 4))
comb(range(4), 3)
fib(5)
[/code]

By: Paul Butler

Paul Butler — Fri, 27 Jun 2008 03:33:05 +0000

Zeroth, absolutely. I was thinking of using an open-source license but given that it is so short it seems to make more sense to just make it public domain. So consider it public domain; attribution is appreciated but not required.

Re: the spam filter, I’m not sure exactly what you mean, but copying the number to the text field is how users without javascript prove they are human (users with javascript are assumed to be human, because so far bots do not generally run javascript).

By: Zeroth

Zeroth — Fri, 27 Jun 2008 03:01:14 +0000

I also want to add, that your spam catcher shows up when I have noscript enabled. By rote reaction, I did exactly what it said, XD.

By: Zeroth

Zeroth — Fri, 27 Jun 2008 03:00:09 +0000

Thats pretty amazing of a function. Mind if I borrow it? With proper credit of course in my files. :D