BerkeleyDB: How to dump in a turtle file

[bronger]

I have created a Berkeley DB store with all triples. How can I create a turtle file from that using rdflib? If I open it with

graph = rdflib.Graph("BerkeleyDB")
graph.open("/path/to/db")

then graph is empty. Thank you!

[ghost]

There's a fully-worked example, basically the create kwarg for BerkeleyDB's open method defaults to create=True which has the unfortunate effect of overwriting any existing BerkeleyDB structure with an as-yet-unpopulated new structure.

If you use graph.open("/path/to/db", create=False), you should be good.

To serialize as turtle: graph.serialize("/tmp/graph.ttl", format="turtle") (or provide a handle to an open file ... see the API docs for full details.)