Inserting four objects:  <pymongo.results.InsertManyResult object at 0x7fd356704f88>
Inserting one more object:  <pymongo.results.InsertOneResult object at 0x7fd356704a48>

Retrieve all data

{'_id': ObjectId('5c4979d78e533e6661e2e4c7'), 'name': 'The Beatles', 'years': [1962, 1970]}
{'_id': ObjectId('5c4979d78e533e6661e2e4c8'), 'name': 'Pink Floyd', 'years': [1966, 2015]}
{'_id': ObjectId('5c4979d78e533e6661e2e4c9'), 'name': 'The Clash', 'years': [1977, 1985]}
{'_id': ObjectId('5c4979d78e533e6661e2e4ca'), 'name': 'Dire Straits', 'years': [1977, 1993]}
{'_id': ObjectId('5c4979d78e533e6661e2e4cb'), 'name': 'King Crimson', 'years': [1969, 2018]}


Find all bands that started their career in 1977

{'_id': ObjectId('5c4979d78e533e6661e2e4c9'), 'name': 'The Clash', 'years': [1977, 1985]}
{'_id': ObjectId('5c4979d78e533e6661e2e4ca'), 'name': 'Dire Straits', 'years': [1977, 1993]}
For bands that started in the 1960s, report start and stop years as individual keys

{'name': 'The Beatles', 'start': 1962, 'stop': 1970}
{'name': 'Pink Floyd', 'start': 1966, 'stop': 2015}
{'name': 'King Crimson', 'start': 1969, 'stop': 2018}

------------- DONE ---------------