pythonrequestgziptarfile

Is there any way to read data from tar.gz files online without downloading them locally?


So I am working on a project which requires specific data from the cosmic-2 satellite.

The data is stored in compressed tar.gz and there are thousands of files so I don't want to download them all and then process them one by one due to time and storage constraints.

Instead I would like to look for an alternative way that allow me to read data from files directly without having to download them first.

Maybe requests or urllib can do that

Currently I tried

url = https://sitename.com/data.tar.gz

File = response.get(url, stream= True)

With tarfile.open(file, "r:gz") as f: f.extractall()


Solution

  • You can read data from a tar.gz file online without downloading it locally in Python by using the urllib module to fetch the file and tarfile module to extract its contents.

    Here's an example of how you can do this:

    import urllib.request
    import tarfile
    import io
    
    url = "http://example.com/your_file.tar.gz"  # Replace with the actual URL of the tar.gz file
    
    # Fetch the tar.gz file
    response = urllib.request.urlopen(url)
    tar_bytes = io.BytesIO(response.read())
    
    # Extract the contents
    with tarfile.open(fileobj=tar_bytes, mode="r:gz") as tar:
        for member in tar.getmembers():
            f = tar.extractfile(member)
            if f is not None:
                content = f.read()
                print(content.decode("utf-8"))