anonymous function means that a function is without a name. As we already know that def keyword is used to define the normal functions and the lambda keyword is used to create anonymous functions.
lambda arguments: expression
Local variables: If a variable is assigned a new value anywhere within the function's body, it's assumed to be local.
Global variables: Those variables that are only referenced inside a function are implicitly global.
The use of the split function in Python is that it breaks a string into shorter strings using the defined separator. It gives a list of all words present in the string.
A function is an object which represents a block of code and is a reusable entity. It brings modularity to a program and a higher degree of code reusability.
Python has given us many built-in functions such as print() and provides the ability to create user-defined functions.
The purpose of a function is to receive the inputs and return some output.
The return is a Python statement which we can use in a function for sending a value back to its caller.
It is not at all necessary for a function to return any value. However, if needed, we can use None as a return value.
The ord(char) in Python takes a string of size one and returns an integer denoting the Unicode code format of the character in case of a Unicode type object, or the value of the byte if the argument is of 8-bit string type.
*args is used when the programmer is not sure about how many arguments are going to be passed to a function, or if the programmer is expecting a list or a tuple as argument to the function.
**kwargs is used when a dictionary (keyword arguments) is expected as an argument to the function.
The function Counter() from the module ‘collections’. It counts the number of occurrences of the elements of a container.
Counter({1: 4, 3: 2, 2: 2, 4: 1})
Python provides us with a range of ways and methods to work with a Counter
