[Tutor] Counting Items in a List

[Prasad, Ramit]

Please do not top post.

> Sorry for the double-post.
> 
> I don't think I am wrong either. Replace doesn't return a list of words in
> the way that my code sample was setup to do.
> How would you solve it with replace? Maybe an example prove the point
> better.
> 
> -Mario
> On Wed, Jun 20, 2012 at 4:10 PM, mariocatch <mariocatch at gmail.com> wrote:
> Yes, I meant split(). Was a typo :)
> 
> On Wed, Jun 20, 2012 at 3:56 PM, Prasad, Ramit <ramit.prasad at jpmorgan.com>
> wrote:
> Please always post back to the list.
> 
> > Nope, strip() was intended so we get a list back instead of a string.
> Need
> > the list for iteration down below that.
> >> >    para = paragraph.strip('.').strip(',').strip().split()
> >> I think you want replace not strip.
> >>
> >> See http://docs.python.org/library/stdtypes.html#string-methods
> No, you are wrong. If you had looked at the link (or tested the code) you
> would find strip() does not do what you think it does.
> 
> What do you mean by "we get a list back instead of a string"? strip does
> not return a list...it returns a string. split is what returns the list for
> iteration.
> 
> 
> >>> paragraph = "This paragraph contains words once, more than once, and
> possibly not at all either. Figure that one out. "
> >>> para = paragraph.strip('.').strip(',').strip().split()
> >>> print para
> ['This', 'paragraph', 'contains', 'words', 'once,', 'more', 'than',
> 'once,', 'and', 'possibly', 'not', 'at', 'all', 'either.', 'Figure',
> 'that', 'one', 'out.']
> 
> Note the inclusion of 'once,' and 'either.' and 'out.'. Use replace to
> remove
> punctuation instead and then just compare words. Most probably you want to
> lower()
> or upper() the entire paragraph to be thorough, otherwise 'This' and 'this'
>  will
> be counted separately.


You are not reading my replies closely enough. I am talking about *replace*
instead of *strip* and NOT split. Again, if you read the documentation
I linked you would see what I am talking about, but if not just look at the
difference between a and b below.

a = ' Something, is happening here.'.strip(',')
b = ' Something, is happening here.'.replace(',', '')
print a==b
Ramit


Ramit Prasad | JPMorgan Chase Investment Bank | Currencies Technology
712 Main Street | Houston, TX 77002
work phone: 713 - 216 - 5423

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