problem with read() write()
Alf P. Steinbach
alfps at start.no
Sat Oct 31 09:23:12 EDT 2009
* Zeynel:
> Hello,
>
> I've been studying the official tutorial, so far it's been fun, but
> today I ran into a problem with the write(). So, I open the file pw
> and write "hello" and read:
>
> f = open("pw", "r+")
> f.write("hello")
> f.read()
>
> But read() returns a bunch of what looks like meta code:
>
> "ont': 1, 'center_insert_even\xc4\x00K\x02\xe8\xe1[\x02z\x8e
> \xa5\x02\x0b
> \x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'QUEUE'\np1\n
> (S'exec' ....
>
> What am I doing wrong? Thank you.
After the 'write' the current position in the file is after the "hello", so
reading will read further content from there.
The following works (disclaimer: I'm utter newbie in Python, and didn't consult
the documentation, and it's the first time I've seen the Python 'open'):
f = open("pw", "r+")
f.write( "hello" )
f.seek( 0 ) # Go back to start of file
f.read()
f.close()
Cheers & hth.,
- Alf
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