python3-asyncpg 0.12.0-1build1 (amd64 binary) in ubuntu artful

 Database interface library designed specifically for PostgreSQL and
 Python/asyncio.
 asyncpg is an efficient, clean implementation of PostgreSQL server binary
 protocol for use with Python's asyncio framework.
 It implements PostgreSQL server protocol natively and exposes its features
 directly.
 .
 Features:
  * prepared statements,
  * scrollable cursors,
  * partial iteration on query results,
  * automatic encoding and decoding of composite types, arrays, and any
    combination of those,
  * straightforward support for custom data types