----------------------------------------
> To: tutor@python.org
> From: alan.ga...@btinternet.com
> Date: Mon, 13 Sep 2010 18:28:46 +0100
> Subject: Re: [Tutor] wierd replace problem
>
>
> "Roelof Wobben" wrote
>
>> 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.
>
> OK,. Thats replacing a double slash in the data
>
>> for line in file:
>> line2 = line.replace ("\\","")
>
> And this is doing the same. Any double slashes in your file content
> will be replaced.
>
>> letter_items = letter_counts.items()
>> letter_items.sort()
>> print letter_items
>
> Now we have an issue of representing characters.
>
>> [('"\'tis', 1),
>
> This is a representation issue. Python is using the \ to escape
> the single quote since you are using single quotes on the outside.
> Without the backslash the \' would look like the end of the
> string to Python.
>
> If you print the actual string it will not show the quote:
>
> for item in letter_items:
> print item[0]
>
> Backslashes are awkward characters because they are used
> for several different special purposes as well as being characters
> in their own right. If you had tried replacing almost any other
> character you would not have gotten confused.
>
> HTH,
>
> --
> Alan Gauld
> Author of the Learn to Program web site
> http://www.alan-g.me.uk/
>
>
>
>>
>> Why does the \ stays here. It should have gone as the test in the
>> python prompt says.
>>
>> Roelof
>>
>>
>>
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>
>
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hello Alan,
Your right. Then it prints like this "'tis
Which is not right. It must be tis.
So the replace does not what it supposed to do.
Roelof
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