Check database exists in Mongodb using pymongo

Question

how can I put an exceptional handling for checking whether database is exists or not in mongodb using pymongo.

Thanks.

Answer 1

An attempt to access a database that doesn't exist is not considered an error. Instead, the database will be created if it doesn't exist when you first write to it.

So if you need to know whether a database already exists, you need to explicitly check. You can call list_database_names() on your MongoClient object to get a list of the existing database names:

client = MongoClient()
dbnames = client.list_database_names()
if 'mydbname' in dbnames:
    print "It's there!"