zipfile 2GB problems?

[xamdam]

>
> > Additional info: my file is from a data provider, do not know what
> > they used to compress it. Previous files worked ok, this one is the
> > 1st over 2GB. Winzip has no problem with it.
>
> It could be you are using a Python with an in-built limit of 2GB on file
> size. What happens if you open the file, seek past the 2GB point and
> then try and read data?
>

Steve,
I used is_zipfile function, which from does exactly that from a quick
read - goes to the end, reads expected string. It worked fine. Tried
regular Windows 2.4.4 and 2.5.1, same result.