What is the use of decorators

Question

i don't get a proper idea how and where to use them ..

Answer 1

check out these links:

https://www.programiz.com/JUMP_LINK__&&__python__&&__JUMP_LINK-programming/decorator
https://www.oreilly.com/ideas/5-reasons-you-need-to-learn-to-write-python-decorators
http://stackoverflow.com/questions/489720/what-are-some-common-uses-for-python-decorators

Answer 2

Here is an example of what a decorator may be useful for:
https://code.sololearn.com/cD09ijlIS6Ev/?ref=app