Note: Barry's key id EA5BBD71 is used to sign all Python 2.6 and 3.0 releases. His key id ED9D77D5 is a v3 key and was used to sign older releases.
You can import the release manager public keys by either downloading the public key file from here and then running
% gpg --import pubkeys.txt
or by grabbing the individual keys directly from the keyserver network by running this command:
% gpg --recv-keys EA5BBD71 6A45C816 ED9D77D5 \
7D9DC8D2 A4135B38 36580288
On the version-specific download pages, you should see a link to both the downloadable file and a detached signature file. To verify the authenticity of the download, grab both files and then run this command:
% gpg --verify Python-3.2.3.tgz.asc
