firebirdsql package is a set of Firebird RDBMS (http://firebirdsql.org/) bindings for Python (Written in pure Python : no C compiler needed or fbclient library)

It works on Python 2.6+ and 3.3+.

see https://pyfirebirdsql.readthedocs.io/en/latest/

import firebirdsql
conn = firebirdsql.connect(
    host='localhost',
    database='/foo/bar.fdb',
    port=3050,
    user='alice',
    password='secret'
)
cur = conn.cursor()
cur.execute("select * from baz")
for c in cur.fetchall():
    print(c)
conn.close()

You can unit test with Firebird3.

Set firebird.conf like this :

AuthServer = Srp, Legacy_Auth
WireCrypt = Enabled

and execute bellow command:

$ python setup.py test

On the other hand, you can use it with Firebird3 wire protocol 13 (Srp authentication and wire encryption) with default firebird.conf