Is it possible to download just part of a ZIP file using python zipfile library

Question

I was wondering is there any way by which I can download only a part of a.rar or.zip file without downloading the whole file? There is a zip file containing files A,B,C and D. I only need A. Can I somehow, use zipfile module so that i can only download 1 file?

i am trying below code:

 r = c.get(file)
    z = ZipFile.ZipFile(BytesIO(r.content)) 
    for file1 in z.namelist():
        if 'time' not in file1:
            print("hi")
            z.extractall(file1,download_path + filename)

This code is downloading whole zip file and only extracting specific one. Can i somehow download only the file i Need. There is similar question here but it shows only approch by command line in linux. That question dosent address how it can be done using python liabraries.

Answer 1

The question @Juggernaut mentioned in a comment is actually very helpful, as it points you in the direction of the solution.

You need to create a replacement for Bytes.IO that returns the necessary information to ZipFile . You will need to get the length of the file, and then get whatever sections ZipFile asks for.

How large are those file? Is it really worth the trouble?

Answer 2

Use remotezip: https://github.com/gtsystem/python-remotezip . You can install it using pip:

pip install remotezip

Usage example:

from remotezip import RemoteZip


with RemoteZip("https://path/to/zip/file.zip") as zip_file:
    for file in zip_file.namelist():
        if 'time' not in file:
            print("hi")
            zip_file.extract(file, path="/path/to/extract")

Note that to use this approach, the web server from which you receive the file needs to support theRange header .