asyncpg/protocol/record/recordobj.c:562: bad argument to internal function when using custom Record class

[yohanboniface]

• asyncpg version: latest git 3d0e23f
• PostgreSQL version: 13.1
• Python version: 3.9
• Platform: linux
• Do you use pgbouncer?: no
• Did you install asyncpg with pip?: yes, but from local git checkout
• If you built asyncpg locally, which version of Cython did you use?: asyncpg/.eggs/Cython-0.29.21
• Can the issue be reproduced under both asyncio and
  uvloop?: yes

How to reproduce

import asyncio
import asyncpg
from datetime import date
import uvloop

uvloop.install()


class MyRecord(asyncpg.Record):
    pass


async def main():
    conn = await asyncpg.connect("postgresql://postgres@localhost/test")
    await conn.execute(
        "CREATE TABLE IF NOT EXISTS users(id serial PRIMARY KEY, name text, dob date)"
    )

    await conn.execute(
        "INSERT INTO users(name, dob) VALUES($1, $2)", "Bob", date.today()
    )

    row = await conn.fetchrow(
        "SELECT * FROM users WHERE name = $1", "Bob", record_class=MyRecord
    )
    # Will raise asyncpg/protocol/record/recordobj.c:562: bad argument to internal function
    print(row.items())

    # Close the connection.
    await conn.close()


asyncio.get_event_loop().run_until_complete(main())

[yohanboniface]

Thanks :)