Retrieve data from dynamodb using pynamodb

Question

I'm getting started with pynamodb (and dynamodb), and can't figure out how to use it.

I have:

• A dynamodb table
• A lambda

Running this code inside a lambda, I can successfully create two entries (I see them in the dynamodb Management Console):

class User(Model):
        class Meta:
            table_name = dynamodb_table_name
            region = "eu-west-1"

        email = UnicodeAttribute(hash_key=True)
        first_name = UnicodeAttribute(null=False)
        last_name = UnicodeAttribute(null=False)

User(email="[email protected]", first_name="John", last_name="Snow").save()
User(email="[email protected]", first_name="Daenerys", last_name="Targaryen").save()

I then attempt to retrieve one of these entries, running the following code:

class User(Model):
        class Meta:
            table_name = "dynamodb_table_name"
            region = "eu-west-1"

        email = UnicodeAttribute(hash_key=True)
        first_name = UnicodeAttribute(null=False)
        last_name = UnicodeAttribute(null=False)
        
print(User.count())
jon = User.get("[email protected]")
print(jon)

Here's the output I get:

0
dynamodb_table_name<None>

Questions:

• Why do User.count() returns zero, when I can clearly see two entries from the Management Console?
• Why can't the user be retrieved from the DB?