Meta Class

[Trevor Johnson]

Hi;
I think I have a good candidate for a meta class here. Never done this
before and would like someone to help. In the code that follows, there is
one variable that needs to be changed: the letter 'a' as inserted in
construction of the variable 'word'. In other applications, I will need to
change that to two variables, but they are independent within this code. How
do I go about abstracting these variables to make a meta class?
TIA,
Trevor

 >>> def testing():
...   for word in wordPool:
... i = 0
... i2 = 0
... i3 = []
... new = []
... for letter in word:
...   if letter == 'a':
... i3.append(i2)
... i2 += 1
... new.append(word[0:i + 1] + 'a' + word[i + 1:len(word)])
...   i += 1
...   i2 += 1
... i4 = 0
... i5 = 0
...   for word in new:
... wordPool.append(word)
...   print 'i3: ', i3
...   for word in wordPool:
... while len(i3) > i4:
...   new.append(word[0:i3[i4]] + 'a' + word[i3[i4]:len(word)])
...   i4 += 1
...   while len(i3) > i5:
... new.append(word[0:i3[i5] + 1] + 'a' + word[i3[i5] +
1:len(word)])
... i5 += 1
... i4 = 0
...   for word in new:
... i = 2
... while i < len(word):
...   if word[i - 2] == word[i - 1]:
... if word[i - 1] == word[i]:
...   new.remove(word)
...   i += 1
...   for word in new:
... if word[len(word) - 3:len(word)] == 'aaa':
...   new.remove(word)
...   for word in new:
... wordPool.append(word)
...   i = 0
...   i2 = 0
...   for word in wordPool:
... for test in wordPool:
...   if i != i2:
... if test == word:
...   wordPool.remove(test)
...   i2 += 1
... i += 1
...   for word in wordPool:
... print 'second: ',word
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Meta Class

[Trevor Johnson]

You're right I totally misunderstood it. And your idea is obvious and simple
enough :)

On Feb 1, 2008 6:33 PM, Gabriel Genellina <[EMAIL PROTECTED]> wrote:

> En Fri, 01 Feb 2008 15:46:05 -0200, Trevor Johnson
> <[EMAIL PROTECTED]> escribió:
>
> > I think I have a good candidate for a meta class here. Never done this
> > before and would like someone to help. In the code that follows, there
> is
> > one variable that needs to be changed: the letter 'a' as inserted in
> > construction of the variable 'word'. In other applications, I will need
> > to
> > change that to two variables, but they are independent within this code.
> > How
> > do I go about abstracting these variables to make a meta class?
>
> I think you totally misunderstood the metaclass concept. A class is an
> instance of its metaclass, that is, a metaclass is the "thing" used to
> create a new class. You don't even use (custom) classes in your example.
>
> If you want to make a more generic function, that is, something that works
> for other letters instead of just 'a', you want a function parameter:
>
> >  >>> def testing(searched_letter):
> > ...   for word in wordPool:
> ...
>
> and replace all occurences of 'a' with searched_letter, and 'aaa' with
> searched_letter*3
>
> Usage: testing('a'), it should give the same results as before. Try
> testing('e') etc.
>
> --
> Gabriel Genellina
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
-- 
http://mail.python.org/mailman/listinfo/python-list