string->list->string

[Steve Holden]

"Courageous" <jkraska1 at san.rr.com> wrote ...
> On Mon, 23 Apr 2001 18:36:48 -0600, Bjorn Pettersen <BPettersen at NAREX.com>
wrote:
>
> >>>> x = [1,2,3]
> >>>> str(x)
> >'[1, 2, 3]'
> >>>> eval(str(x))
> >[1, 2, 3]
>
> Not getting it: I want
>
> s = "abc"
> l = list(s)
> <something>(l)
> "abc"
>
Well, perhaps if your original enquiry hadn't said

"""
So. I forget how to do this AGAIN. I know how to convert a string to a list:

mylist = str ("alpha")

but I don't remember the shorthand for converting it back?
"""

we might have understood that you really meant mylist=list(alpha).

The collective brainpower of c.l.py is indeed impressive, and I have seen
the smarter members pull off some pretty amazing feats of psychic response
("the answer to the question you *really* meant to ask is ...").

That doesn't mean you can expect it all the time!

> Where something is some expression. The worst part here is that sometime
in
> the last year, I've asked this very same question before. *IRK* Is this in
the FAQ?
> It outta be.
>
How embarrassing!  Good for you for confessing ;-) Good for the soul, doncha
know...

> >>>> s = "a!b%c^"
> >>>> import string
> >>>> t = string.maketrans(s,s)
> >>>> s.translate(t, "!%^")
> >'abc'
>
> Hrm. I read the documentation for string.maketrans() and
string.translate() just now.
> I don't get it. The documentation doesn't make this clear, and I don't
understand
> from your example what's going on. While I can see that it works, I don't
get the
> basic principle. I would think a maketrans of s,s would just translate one
character
> to the same character.
>
Part of your cinfusion could be that you are reading the wrong
documentation. The translate used above is the translate method of the
string type, not the translate function of the string module. Although the
reponse could have made that clearer, the clue is that the answer used
string.maketrans() but s.translate().

Given this new information, does the example make sense now you understand
that the "!%^" argument is specifying delete characters (you do understand
that now, right)?

> ???
>
!!!

we're-only-human-(except-the-bots)-you-know-ly y'rs  - steve