List fields and count laureates' prizes

Use a collection’s find_one method to return a document. This method takes an optional filter argument. Passing an empty filter ({}) is the same as passing no filter. In Python, the returned document takes the form of a dictionary. The keys of the dictionary are the (root-level) "fields" of the document.

Each laureate document has a "prizes" field. This field, an array, stores info about each of the laureate’s (possibly shared) prizes. You may iterate over the collection, collecting from each document. However, a collection is not a list, so we can't write for doc in <collection> to iterate over documents. Instead, call find() to produce an iterable called a cursor, and write for doc in <collection>.find() to iterate over documents.

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Exercise

List fields and count laureates' prizes

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