zipstream
Simple python library for streaming ZIP files which are created dynamically, without using any temporary files.
Files stored in ZIP file are not compressed. Its intended to serve easily structured content in convenient way in web applications
- No temporary files, data is streamed directly from files
- Small memory usage, straming is realised using yield statement
- Archive structure is created on the fly
- Zip32 compatible files
- Zip64 support is planned in future
- Independent from python's standard lib implementation
Examples:
Example of creating zip file
from zipstream import ZipStream
zs = ZipStream()
# add files to zip before streaming
zs.add_file("example_file_1.txt")
zs.add_file("example_file_2.txt")
zs.add_file("example_file_3.jpg")
# write result file
with file("zipout.zip","wb") as fout:
for f in zs.stream():
fout.write(f)Example of using zipstream as Django view
from django.http import StreamingHttpResponse
def stream_as_zip(request):
streamed_data_filename = "my_streamed_zip_file.zip"
# large chunk size will improve speed, but increase memory usage
stream = ZipStream(chunksize=32768)
# filename of first file in ZIP archive will be different than original
stream.add_file("/tmp/my_mp3_file.mp3", "my.mp3")
stream.add_file("/tmp/some_grapth.jpg")
stream.add_file("/tmp/foo")
# streamed response
response = StreamingHttpResponse(
stream.stream(),
content_type="application/zip")
response['Content-Disposition'] =
'attachment; filename="%s"' % streamed_data_filename
return response
