Saving variable value to a file does not work!!!!
gh_pythonlist at gmx.de
Sun Sep 30 16:23:31 CEST 2001
On Sun, Sep 30, 2001 at 06:04:33PM +0200, Husam wrote:
> Hi friends,
> Im a newbie and trying to save the value of variable 'counter' to a
> file, but it does not work.
> The code Im usig is:
> for line in lines: # I'm reading from file: test2.txt.
> One of it's lines contain: ID 5.
> if line[0:2]=='ID':
> output=open('test2.txt','a') # Hier Im opening the same file for
> output.write(counter +1) # This is the trouble making
Btw. the string.split(line) doesn't do anything in your case, if you
want to store the output of the split function, you can use something
like "mylist = string.split(line)". But now the the real problem.
> The error message I get when this code is run:
> Traceback (innermost last):
> File "./script.py", line 23, in ?
> TypeError: read-only buffer, int
You can't write any ints with the write function. But you can write
strings. Just do
output.write(str(counter + 1))
I acknowledge this is a bit strange. And I also don't know the reason
why the conversion to string doesn't happen automatically, like with the
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reduce(lambda x,y:x+y,map(lambda x:chr(ord(x)^42),tuple('zS^BED\nX_FOY\x0b')))
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