Collections and Map Reduce APIs - Python

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As we understand basics of programming such as loops and functions, let us now focus on important aspects of Python which is required in the pursuit of data processing. Collections – list, set and dict Operations on collections Map Reduce APIs Here is the video which give overview about collections Processing data using Map Reduce…

dict operations
Descriptions its given -

d.keys will give list of keys
d.items will return elements in the form of tuple

However when i executed i got -

<built-in method items of dict object at 0x2137ef0>

<built-in method keys of dict object at 0x2137ef0>

Please explain this .