Explain various features of a dict datatype in python.

Answer 1

As you have not finished the python tutorial, i would recommend you to do so. on the bottom find 2 links dedicated to dictionary:

>>> To get more info about dict, use console and type:
help(dict) and press return

https://www.sololearn.com/learn/Python/2450/
https://www.sololearn.com/learn/Python/2451/

Answer 2

cruid =
create
read
update
insert
delete

Answer 3

In Python, there are only a few very popular containers. dict, list, and tuple. A dict is different from a list because you can map any immutable key to any value. A dictionary in Python is similar to c++'s map, Java's HashMap, c#'s Dictionary, and PHP's associative array.

You can do what you'd expect with any key-value pair container.

You can set keys to map to specific values.
mydict = {}
mydict['x'] = 4
mydict['y'] = 5
# you can remove or unset keys.
mydict.pop('y')

A more tutorial-like explanation is at:
https://www.w3schools.com/python/python_dictionaries.asp

The most detail and most trusted source for information about dictionaries is the official documentation at:
https://docs.python.org/3/tutorial/datastructures.html