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this is a trivial question but I didn't found the answer on how to get the primary from a dynamoDB table in AWS. (I know we can from the dynamodb object but I would like to keep it directly from dynamodb.Table.

Problem: AttributeError: 'dynamodb.Table' object has no attribute 'primary_key'

Solution: Something like my_table.get_primary_key() ?

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import inspect
print(inspect.getmembers(table, lambda a: not (inspect.isroutine(a))))

Result:

[....('attribute_definitions', [{'AttributeName': 'mail', 'AttributeType': 'S'}]), ...]

Answer::

def get_primary_key(table):
    return table.attribute_definitions[0]["'AttributeName"]
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