bz2 module
Alex Martelli
aleaxit at yahoo.com
Mon Oct 18 16:40:07 EDT 2004
Brad Tilley <bradtilley at gmail.com> wrote:
> I'm having a bit of trouble using the bz2 module. The documentation for
> it is very poor. Here's what I'm trying to do:
>
> import bz2
>
> x = file('test.bkf', 'rb')
>
> while True:
> data = x.read(1024000)
> if not data:
> break
> bz2.BZ2File('test.bkf.copy', 'w').write(data)
>
> x.close()
>
> It fails with this error:
> AttributeError: 'module' object has no attribute 'BZ2File'
Looks like your Python is misinstalled, or something...:
>>> import bz2
>>> bz2.BZ2File
<type 'bz2.BZ2File'>
>>>
> Can anyone give me an example of how to use bz2 to compress files. Why
import bz2
source = open('test.bkf', 'rb')
destination = bz2.BZ2File('test.bkf.bz2', 'w')
while True:
data = source.read(1024000)
if not data: break
destination.write(data)
destination.close()
source.close()
> don't the docs give examples of this?!?
If the docs were perfect, who'd ever buy Python in a Nutshell, or the
Python Cookbook? So I sneak in at night in the CVS repository and
secretly sabotage them just enough, destroying, without leaving a trace,
all the wonderful doc patches that people are submitting all the time,
fixing problems rather than whining about them...
Alex
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