generators

Generator is the responsible to generate the sequence of values. It is going to generator the values by using ‘yield’ keyword.

It generators one value at a time, one by one value.

Here ‘return’ statement and ‘yield’ statement almost same

return	Yield
It is keyword	It is also keyword
It executes only once	Multiple times can be executed
When return statement is executed, control comes out of the function	Since it executes multiples times, a function can return no of yield statements

When do we use ‘Generators’ in your program?

Whenever you are fetching huge data or records from the data base, you want to print all the lakhs of records (data), while executing the huge records, these records will be loaded in the memory, unnecessarily memory will be wasted with huge data (records) so I want to work one value at a time in that case we can use generators concept instead of getting the entire data at a time.

Related Video: https://youtu.be/pNpmiKhOhKQ

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Decorator function

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