download a .gz file from a subdirectory in a s3 bucket using boto

I have a file named combine.gz which I need to download from a subfolder on s3 . I am able to get to the combine.gz files (specifically one per directory) but I am unable to find a method in boto to read the .gz files to my local machine.

All I can find are the boto.utils.fetch_file, key.get_contents_to_filename , key.get_contents_to_file methods all of which as I understand, directly stream the contents of the file.

Is there be a way for me to first read the compressed file in .gz format onto my local machine from S3 using boto and then uncompress it?

Any help would be much appreciated.