i am not aware for ORM support though if that is what you are looking for
from python
i am not sure to understand what you mean by integration. Allegrograph exposes a sparql endpoint https://franz.com/agraph/support/documentation/current/http-protocol.html you find the correct URL for your deployment and replace it in the instantiation of SPARQLWrapper https://sparqlwrapper.readthedocs.io/en/latest/main.html#how-to-use this allows you to send queries and process answers
https://franz.com/agraph/support/documentation/current/sparql-reference.html
sorry these two I've never used before 😕 but i expect sparql wrapper to work with allegro
what graph DB? triplestore? you can use SPARQLWrapper graph DB there is for example https://neo4j.com/docs/getting-started/languages-guides/neo4j-python/ not sure if I got your question correclty