dictionary

Question

def, I don't get this part

Answer 1

dictionaries are in key and values pairs and it do not have any indexes. It can be integer, strings, float anything

{
'key':value,
'key':value
}

Ex:
{
'ball':46,
'cricket':34,
}

Answer 2

Unknowns ,

your statement that any data type can be used in dictionaries can mislead readers.

a *key* must be hashable, that means:
> a keys must be an *immutable data type*.

we cannot use data types as a key that can change after they are created like:
> list, dictionary, set

*values* can be of any data type

Answer 3

In What language? Python, C#, ...

Answer 4

Lothar I never mentioned keys to be of any data type and thanks for clarifying in detail

Answer 5

def is a pre defined keyword in Python used for creating a function that can be used whenever required.
Ex:-
def add():
a=4
b=5
print(a+b)
add()