file.tell() -- obscure IOError
Uwe Mayer
merkosh at hadiko.de
Fri Jun 14 23:17:25 EDT 2002
In article <MPG.1774c753f4d1f6fe989687 at news.rz.uni-karlsruhe.de>,
merkosh at hadiko.de says...
[...]
now I did it. I isolated a piece of code which produces the same error
in the command line:
----------------------------------
>>> f = file('test.riff.txt')
>>> f.seek(0,2)
>>> f.tell()
109L
>>> f.seek(0,0)
>>> while f.tell() < 109L:
... f.read(3)
...
'//d'
'ies'
Traceback (most recent call last):
File "<stdin>", line 1, in ?
IOError: (0, 'Error')
>>>
----------------------------------
test.riff.txt contains the following:
--------------------------
//dies ist ein beispielkommentar
hier nichtmehr\r
hier auch nicht //hier schon
und hier ist schluss
//ende
--------------------------
<--- some time later: 5:17 o'clock in the morning --->
i ound the mistake.
that is: i know what went wrong, but i still don't know why:
f was opened in text mode. calling
f = file('test.riff.txt','rb')
works fine.
assumingly read() took \r and the new line characters as control
characters... grml...
Ciao
Uwe
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