Like the databases, you can use either the attribute style access or the dictionary-style access to get a collection: collection = local_db.startup_log You can list the collections of a database using list_collection_names(). They can be thought of as the MongoDB equivalent of tables. Or the dictionary-style access: local_db = client CollectionsĬollections are exactly that, collections of documents stored in MongoDB. To access one of these databases, you can either use attribute style access on the client object: local_db = client.local Now that we have established a connection to the local instance, let’s list the existing databases using the list_database_names() method: client.list_database_names() -Output-Ī single MongoDB instance can have multiple databases, as can be seen above. You can use this default URI to connect to the local instance in Compass. Or use the MongoDB URI format: DEFAULT_CONNECTION_URL = "mongodb://localhost:27017/"Ĭlient = pymongo.MongoClient(DEFAULT_CONNECTION_URL) This establishes a connection to the default host and port, we can also specify the host and port: client = pymongo.MongoClient('localhost', 27017) You can do so using the MongoClient() method: import pymongo When working with MongoDB databases, or any database for that matter, the first thing we need to do is to make a connection.
Making a Connection with the MongoDB instance Additionally, I recommend installing MongoDB Compass to have a GUI to explore the data and see the changes made by the code. Instructions for downloading and installing can be found here.
For this article, we will be working with a local MongoDB instance.
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