[Tutor] wierd replace problem

[Roelof Wobben]

----------------------------------------
> From: rwobben at hotmail.com
> To: tutor at python.org
> Date: Mon, 13 Sep 2010 16:46:09 +0000
> Subject: [Tutor] wierd replace problem
>
>
>
>
> ----------------------------------------
>> From: rwobben at hotmail.com
>> To: joel.goldstick at gmail.com
>> Subject: RE: [Tutor] wierd replace problem
>> Date: Mon, 13 Sep 2010 16:45:28 +0000
>>
>>
>>
>>
>> ________________________________
>>> Date: Mon, 13 Sep 2010 12:42:56 -0400
>>> From: joel.goldstick at gmail.com
>>> To: tutor at python.org
>>> Subject: Re: [Tutor] wierd replace problem
>>>
>>>
>>>
>>> On Mon, Sep 13, 2010 at 12:37 PM, Roelof Wobben
>>>> wrote:
>>>
>>>
>>>
>>> ----------------------------------------
>>> Date: Mon, 13 Sep 2010 12:17:47 -0400
>>> From: michael at trollope.org
>>> To: tutor at python.org
>>> Subject: Re: [Tutor] wierd replace problem
>>>
>>>
>>> On Mon, Sep 13, 2010 at 12:19:23PM +0000, Roelof Wobben wrote:
>>>>
>>>> Hello,
>>>>
>>>> I have this string called test with the contents of 'het is een
>>> wonder \\TIS'
>>>>
>>>> Now I want to get rid of the \\ so I do this : test2 = test.replace
>>> ('\\', '')
>>>> And I get at the python prompt this answer : 'het is een wonder TIS'
>>>> So that's right.
>>>>
>>>> Now I try the same in a IDE with this programm :
>>>>
>>>> woorden =[]
>>>> letter_counts = {}
>>>> file = open ('alice_in_wonderland.txt', 'r')
>>>> for line in file:
>>>> line2 = line.replace ("\\","")
>>>> line3 = line2.lower()
>>>> woorden = line3.split()
>>>> for letter in woorden:
>>>> letter_counts[letter] = letter_counts.get (letter, 0) + 1
>>>> letter_items = letter_counts.items()
>>>> letter_items.sort()
>>>> print letter_items
>>>>
>>>> But now Im gettting this output :
>>>>
>>>> [('"\'tis', 1),
>>>>
>>>> Why does the \ stays here. It should have gone as the test in the
>>> python prompt says.
>>>
>>> Hello,
>>>
>>> Actually, on closer look I can see the answer.
>>>
>>> The original text must look something like this:
>>>
>>> \\"'tis the season to be jolly," said santa.
>>>
>>> When you run your process against a string in that format, you get the
>>> output shown: ('"\'tis', 1). The appearance of the backslash is
>>> fortuitous. It has nothing to do with the string.replace(), it's
>>> there to escape the single quote, which is appearing in the middle of
>>> a single-quoted string. IF the double-quote had not also been there,
>>> python would have replaced the outer quotes with double quotes, as it
>>> does on my system before I got to thinking about that lonely double
>>> quote.
>>>
>>> Thanks.
>>>
>>> mp
>>>
>>> --
>>> Michael Powe michael at trollope.org
>>> Naugatuck CT USA
>>> "I wrote what I did because as a woman, as a mother, I was oppressed
>>> and brokenhearted with the sorrows and injustice I saw, because as a
>>> Christian I felt the dishonor to Christianity, -- because as a lover
>>> of my country, I trembled at the coming day of wrath." -- H.B. Stowe
>>>
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>>>
>>> Hello Michael,
>>>
>>> The original text is this :
>>>
>>> `'Tis so,' said the Duchess: `and the moral of that is--"Oh,
>>> 'tis love, 'tis love, that makes the world go round!"'
>>>
>>> So I think I have to replace the '.
>>>
>>> Roelof
>>>
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>>>
>>> That is a completely different problem than the one you originally
>>> posed. I doubt that what you inserted above is actually completely
>>> correct. It opens with a back tick, has a back tick before and, then
>>> ens with what looks like a double quote then a single quote
>>> --
>>> Joel Goldstick
>>>
>>>
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>>
>
> Hello Joel,
>
> The orginal text can be found here : http://openbookproject.net/thinkcs/python/english2e/resources/ch10/alice_in_wonderland.txt
> So you can see I copied it right.
>
> Roelof
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Hello, 
 
I tried my programm in IDLE and the problem stays.
So I think it has to do with the text-file and how python reads it.
 
Roelof