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Question on Python Split
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subhabangal...@gmail.com  
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 More options Oct 7 2012, 3:30 pm
Newsgroups: comp.lang.python
From: subhabangal...@gmail.com
Date: Sun, 7 Oct 2012 12:30:52 -0700 (PDT)
Local: Sun, Oct 7 2012 3:30 pm
Subject: Question on Python Split
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Dear Group,

Suppose I have a string as,

"Project Gutenberg has 36000 free ebooks for Kindle Android iPad iPhone."

I am terming it as,

str1= "Project Gutenberg has 36000 free ebooks for Kindle Android iPad iPhone."

I am working now with a split function,

str_words=str1.split()
so, I would get the result as,
['Project', 'Gutenberg', 'has', '36000', 'free', 'ebooks', 'for', 'Kindle', 'Android', 'iPad', 'iPhone.']

But I am looking for,

['Project Gutenberg', 'has 36000', 'free ebooks', 'for Kindle', 'Android iPad', 'iPhone']

This can be done if we assign the string as,

str1= "Project Gutenberg, has 36000, free ebooks, for Kindle, Android iPad, iPhone,"

and then assign the split statement as,

str1_word=str1.split(",")

would produce,

['Project Gutenberg', ' has 36000', ' free ebooks', ' for Kindle', ' Android iPad', ' iPhone', '']

My objective generally is achieved, but I want to convert each group here in tuple so that it can be embedded, like,

[(Project Gutenberg), (has 36000), (free ebooks), (for Kindle), ( Android iPad), (iPhone), '']

as I see if I assign it as

for i in str1_word:
       print i
       ti=tuple(i)
       print ti

I am not getting the desired result.

If I work again from tuple point, I get it as,

>>> tup1=('Project Gutenberg')
>>> tup2=('has 36000')
>>> tup3=('free ebooks')
>>> tup4=('for Kindle')
>>> tup5=('Android iPad')
>>> tup6=tup1+tup2+tup3+tup4+tup5
>>> print tup6

Project Gutenberghas 36000free ebooksfor KindleAndroid iPad

Then how may I achieve it? If any one of the learned members can kindly guide me.
Thanks in Advance,
Regards,
Subhabrata.

NB: Apology for some minor errors.


 
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MRAB  
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 More options Oct 7 2012, 4:01 pm
Newsgroups: comp.lang.python
From: MRAB <pyt...@mrabarnett.plus.com>
Date: Sun, 07 Oct 2012 21:01:07 +0100
Local: Sun, Oct 7 2012 4:01 pm
Subject: Re: Question on Python Split
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On 2012-10-07 20:30, subhabangal...@gmail.com wrote:

It can also be done like this:

 >>> str1 = "Project Gutenberg has 36000 free ebooks for Kindle Android
iPad iPhone."
 >>> # Splitting into words:
 >>> s = str1.split()
 >>> s
['Project', 'Gutenberg', 'has', '36000', 'free', 'ebooks', 'for',
'Kindle', 'Android', 'iPad', 'iPhone.']
 >>> # Using slicing with a stride of 2 gives:
 >>> s[0 : : 2]
['Project', 'has', 'free', 'for', 'Android', 'iPhone.']
 >>> # Similarly for the other words gives:
 >>> s[1 : : 2]
['Gutenberg', '36000', 'ebooks', 'Kindle', 'iPad']
 >>> # Combining them in pairs, and adding an extra empty string in case
there's an odd number of words:
 >>> [(x + ' ' + y).rstrip() for x, y in zip(s[0 : : 2], s[1 : : 2] + [''])]
['Project Gutenberg', 'has 36000', 'free ebooks', 'for Kindle', 'Android
iPad', 'iPhone.']

It's the comma that makes the tuple, not the parentheses, except for the
empty tuple which is just empty parentheses, i.e. ().

> Then how may I achieve it? If any one of the learned members can kindly guide me.

 >>> [((x + ' ' + y).rstrip(), ) for x, y in zip(s[0 : : 2], s[1 : : 2]
+ [''])]
[('Project Gutenberg',), ('has 36000',), ('free ebooks',), ('for
Kindle',), ('Android iPad',), ('iPhone.',)]

Is this what you want?

If you want it to be a list of pairs of words, then:

 >>> [(x, y) for x, y in zip(s[0 : : 2], s[1 : : 2] + [''])]
[('Project', 'Gutenberg'), ('has', '36000'), ('free', 'ebooks'), ('for',
'Kindle'), ('Android', 'iPad'), ('iPhone.', '')]


 
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Terry Reedy  
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 More options Oct 7 2012, 4:09 pm
Newsgroups: comp.lang.python
From: Terry Reedy <tjre...@udel.edu>
Date: Sun, 07 Oct 2012 16:08:47 -0400
Local: Sun, Oct 7 2012 4:08 pm
Subject: Re: Question on Python Split
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On 10/7/2012 3:30 PM, subhabangal...@gmail.com wrote:

> If I work again from tuple point, I get it as,
>>>> tup1=('Project Gutenberg')
>>>> tup2=('has 36000')
>>>> tup3=('free ebooks')
>>>> tup4=('for Kindle')
>>>> tup5=('Android iPad')

These are strings, not tuples. Numbered names like this are a bad idea.

>>>> tup6=tup1+tup2+tup3+tup4+tup5
>>>> print tup6
> Project Gutenberghas 36000free ebooksfor KindleAndroid iPad

tup1=('Project Gutenberg')
tup2=('has 36000')
tup3=('free ebooks')
tup4=('for Kindle')
tup5=('Android iPad')
print(' '.join((tup1,tup2,tup3,tup4,tup5)))

 >>>
Project Gutenberg has 36000 free ebooks for Kindle Android iPad

--
Terry Jan Reedy


 
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subhabangal...@gmail.com  
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 More options Oct 8 2012, 10:45 am
Newsgroups: comp.lang.python
From: subhabangal...@gmail.com
Date: Mon, 8 Oct 2012 07:45:12 -0700 (PDT)
Local: Mon, Oct 8 2012 10:45 am
Subject: Re: Question on Python Split
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Thank you for nice answer. Your codes and discussions always inspire me.

Regards,
Subhabrata.


 
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