This is based on the C version published at: http://www.mew.org/~kazu/proj/pgpdump/

The intent here is not on completeness, as we don't currently decode every packet type, but on being able to do what people actually have to 95% of the time. Currently supported things include:

• Signature packets
• Public key packets
• Secret key packets
• Trust, user ID, and user attribute packets
• ASCII-armor decoding and CRC check

A single codebase with dependencies on only the standard python library is compatible across Python 2.6, 2.7, and 3.2+, as well as with PyPy 1.8+.