strings

Re: strings

On Mon, 30 Jun 2003 09:54:24 +1100, "Egor Bolonev" <ebolonev@mail. ru> wrote:
[color=blue]
>Hi All!
>
>I have a
>'Pink Floyd/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00'
>and I want a
>'Pink Floyd'
>How can I manage it?
>
>This one isn't work.
>author=f.read( 30).replace('\0 ',' ').rstrip() #from mp3 tag
>[/color]
Trick question ;-)
[color=blue][color=green][color=darkred]
>>> pf = 'Pink Floyd/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00'
>>> pf[:pf.index('/x00')][/color][/color][/color]
'Pink Floyd'[color=blue][color=green][color=darkred]
>>> list(pf)[/color][/color][/color]
['P', 'i', 'n', 'k', ' ', 'F', 'l', 'o', 'y', 'd', '/', 'x', '0', '0', '/', 'x', '0', '0', '/',
'x', '0', '0', '/', 'x', '0', '0', '/', 'x', '0', '0', '/', 'x', '0', '0', '/', 'x', '0', '0', '
/', 'x', '0', '0', '/', 'x', '0', '0', '/', 'x', '0', '0', '/', 'x', '0', '0', '/', 'x', '0', '0
']

I.e., '/x00' is not '\x00' ;-)

Regards,
Bengt Richter

Re: strings

On Mon, 30 Jun 2003 10:27:52 +1100, "Egor Bolonev" <ebolonev@mail. ru> wrote:
[color=blue][color=green][color=darkred]
>> > Hi All!
>> >
>> > I have a
>> > 'Pink Floyd/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00/x00'
>> > and I want a
>> > 'Pink Floyd'
>> > How can I manage it?
>> >
>> > This one isn't work.
>> > author=f.read(3 0).replace('\0' ,' ').rstrip() #from mp3 tag[/color][/color][/color]
If you are playing around with various methods, don't forget
to f.seek(0) between (assuming what you have is at the beginning of the file).
[color=blue][color=green][color=darkred]
>> >[/color]
>>
>> That is weird. Are you sure? It works on my system:
>> (BTW: I think you mean \x00 instead of /x00)
>>[color=darkred]
>> >>> a='Pink Floyd\x00\x00\x 00\x00\x00\x00\ x00\x00\x00\x00 \x00\x00'
>> >>> a[/color]
>> 'Pink Floyd\x00\x00\x 00\x00\x00\x00\ x00\x00\x00\x00 \x00\x00'[color=darkred]
>> >>> a.replace('\0', ' ').rstrip()[/color]
>> 'Pink Floyd'[color=darkred]
>> >>>[/color][/color]
>
>Yes it's weird. The Interactive window of PythonWin shows it correct, but
>debugger window is not.:-([/color]
Did you try it with a fixed string like a above?

BTW, a.replace('\0', '') should work without creating and then stripping spaces, I think.
also a.rstrip('\0') -- though the meanings of all these are different if \x00 occurs internally,
not just in the tail.

Regards,
Bengt Richter