I understand. The problem is that response.stream does not form for a
StringIO which is not a regular file. StringIO is in memory therefore
you have no reason for streaming.
filename = "%s-backup" % (time.strftime("%Y%m%d-%H%M"))
raw_data = <a bunch of data>
stream = cStringIO.StringIO()
zip_file = zipfile.ZipFile(stream, "w", zipfile.ZIP_DEFLATED,
False)
zip_file.writestr(filename, raw_data)
response.headers['Content-Type'] = "application/octet-stream"
response.headers['Content-Disposition'] = "attachment;
filename=%s%s.bin" % (time.strftime("%Y%m%d-%H%M"), filename)
return stream.getvalue() ### << I only changed this
On Oct 14, 1:13 pm, Matt Broadstone <mbroa...@gmail.com> wrote:
> On Fri, Oct 14, 2011 at 12:48 PM, Massimo Di
> Pierro<massimo.dipie...@gmail.com> wrote:
> > What browser?
>
> That was chrome. The previously fix suggested by Brian works for me (thanks!).
>
> Matt
>
>
>
>
>
>
>
>
>
> > On Oct 14, 10:30 am, Matt Broadstone <mbroa...@gmail.com> wrote:
> >> On Fri, Oct 14, 2011 at 9:35 AM, peter <peterchutchin...@gmail.com> wrote:
> >> > If I now do exactly what I did one month ago, there is now no error
> >> > with zip streaming. So maybe you have changed things in
> >> > response.stream since then.
>
> >> > Peter
>
> >> > On Oct 14, 1:24 pm, peter <peterchutchin...@gmail.com> wrote:
> >> >> I sent from my wifes
> >> >> emailhttp://groups.google.com/group/web2py/browse_thread/thread/fe85dca9e4...
>
> >> >> However with hindsight I think I did not give sufficient information
> >> >> in my forum entry. I guess I was seeing if other people had had
> >> >> problems with downloading zip files.
>
> >> >> Today, I just tried the following
>
> >> >> def downloady():
>
> >> >> import os
> >> >> import contenttype as c
> >> >> path="somepath/album.zip"
> >> >> response.headers['Content-Type'] = c.contenttype(path)
> >> >> response.headers['Content-Disposition'] = 'attachment;
> >> >> filename=album.zip'# to force download as attachment
>
> >> >> return response.stream(open(path,'rb'),chunk_size=4096)
>
> >> Does this actually work for you? When I use this code, I get a
> >> download, but it saves out a zero byte file with the proper name.
>
> >> >> and this did work correctly. So I do not know why I was having
> >> >> problems last month, when I repeatedly had problems with downloaded
> >> >> zip files not unzipping.
>
> >> >> So I aplogise for suggesting there was a bug here. I will see if I can
> >> >> recreate the problems I was having and get to the root cause.
>
> >> >> Peter
>
> >> >> On Oct 14, 12:22 am, Massimo Di Pierro <massimo.dipie...@gmail.com>
> >> >> wrote:
>
> >> >> > On Oct 13, 12:46 pm, peter <peterchutchin...@gmail.com> wrote:
>
> >> >> > > As I have reported previously in this forum, I think that
> >> >> > > response.stream does not quite stream zip files correctly.
>
> >> >> > I have no bug report about this. Can you tell us more so we can fix
> >> >> > it?- Hide quoted text -
>
> >> >> - Show quoted text -
