Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #32606 > unrolled thread

Re: pythonic way

Back to article view | Back to comp.lang.python

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: pythonic way Chris Angelico <rosuav@gmail.com> - 2012-11-02 20:11 +1100

#32606 — Re: pythonic way

On Fri, Nov 2, 2012 at 7:58 PM, jack <naruto0.1@live.cn> wrote:
> thanks,but I don't think enumerate() is my want
> Have some ways to operate the reference of element,not a copy when I tried
> to traverse a list?
>
> I'm so sorry about my poor English, hope you don't mind it.

No probs, I'll be a little less vague and pointer-y and give you some
example code. :)

lst = ['foo', 'bar', 'quux', 'asdf', 'qwer', 'zxcv']
for idx, val in enumerate(lst):
    if val[1]=='w': lst[idx]='Replaced'
print(lst)

['foo', 'bar', 'quux', 'asdf', 'Replaced', 'zxcv']


Does that explain it a bit better? You get the index and can then
mutate the list using that index, thus replacing the original entry.

ChrisA

[toc] | [standalone]

Back to top | Article view | comp.lang.python

csiph-web