In Python, the yield keyword is used in a function to turn it into a generator. When a generator function is called, it returns a generator object that can be used to iterate over a sequence of values.

Yes, Python has a ternary conditional operator, also known as a ternary operator or a conditional expression. It allows you to write a simple if-else statement in a single line.

Yes, it is possible to catch multiple exceptions in a single except block in Python.

In Python, You can merge two dictionaries in a single expression using the update() method.

In Python, meta classes are classes that define the behavior of other classes. In other words, a meta class is a class that creates classes. Meta classes allow you to control the behavior of class creation, and to customize how classes are defined.

You are able to set and get environment variables in Python you can just use the os module.

You can use the itertools.chain method from the itertools module to flatten a list of lists. Just see the example below with sample code,