aiopg integration is broken about dd-trace-py

[majorgreys]

@wconti27 Can you add the test error from the failed run?

As an aside, it'd be also useful to validate the integration is broken with a sample app. Put another way, we want to know if its the integration patch or the integration's tests that are broken.

[wconti27]

Sample app branch: conti/debug-aiopg

The sample app has two functions, the first is untraced (though it should be traced, but aiopg.connect is not correctly patched). The second function uses aiopg.connection.connect, and results in tracing, but conn.cursor fails since no conn.close_cursor() exists for aiopg.

pip install .
docker-compose up -d postgres
python -m _aiopg