Testing for databases at runtime

class sage.features.databases.DatabaseCremona(name='cremona', spkg='database_cremona_ellcurve')

Bases: sage.features.StaticFile

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)