Testing for databases at runtime

sage.features.databases.DatabaseCremona

A Feature which describes the presence of John Cremona’s database of elliptic curves.

EXAMPLES:

sage: from sage.features.databases import DatabaseCremona
sage: DatabaseCremona().is_present()  # optional: database_cremona_ellcurve
FeatureTestResult("Cremona's database of elliptic curves", True)