Python Tutorial for Beginners 48 - Python Closures + nested functions

In this Python Programming Tutorial for Beginners video I am going to show you How to use Python Closures and nested functions in python.A Closure is a function object that remembers values which are declared outside the functions.
In Functional programming Functions are first-class citizens i.e. Functions can be used as any other datatype, eg: Arguments to function, Return values of functions, Assigned to variables, Parts of tuples, lists, etc. Functional programming gives The ability to treat functions just like any other values. Closure lexical environments are stored in the property __closure__ of a function. Python supports functional programming idioms

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Python Tutorial for Beginners 47 - Lambda, filter, reduce and map

In this Python Programming Tutorial for Beginners video I am going to show you How to use Lambda function in python. In Addition I am going to show How to used lambda function with functions like filter, reduce und map.As a multi-parameter language, Python also supports functional programming. Lambda functions come from functional programming. Lambda functions are also called one line functions or anonymous functions
Anonymous functions are particularly advantageous when using the map, filter and reduce functions. In Functional programming Functions are first-class citizens i.e. Functions can be used as any other datatype, eg: Arguments to function, Return values of functions, Assigned to variables, Parts of tuples, lists, etc. The lambda expression must fit on one line

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Python Tutorial for Beginners 45 - Python, argparse, and command line ar...

In this Python Programming Tutorial for Beginners video I am going to show you How to use argparse to parse python scripts parameters.So basically we will discuss: What are command line arguments, Why we use command line arguments, How to parse command line arguments with Python. argparse is a in build module in python using which we an pass command line arguments with our python script.The argparse module makes it easy to write user-friendly command-line interfaces. The program defines what arguments it requires, and argparse will figure out how to parse those out of sys.argv. So we just need to import argparse into out python program and use it.
So let us see Build Command Line Interface using Argparse in Python.

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Python Tutorial for Beginners 45 - Python Generators

In this Python Programming Tutorial for Beginners video I am going to show you How to create and use Generators in Python. Generators are simple way defining iterators in python.Generators appears similar to functions, but they keep the state of their variables between calls, and they use yield instead of return. Also calling them again resumes execution after the yield statement.
Python does not allow 'yield' inside a 'try' block with a 'finally' clause. when using iterators, in order to create our own Iterator class we need to implement __iter__() and __next__() methods in your class. But with Python Generators we need to implement __iter__() and __next__() methods. In addition The generators raise the StopIteration exception automatically. So generatora are much easier to implement then iterators.

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Python Tutorial for Beginners 43 - Working With JSON Data in Python

What Is JSON ? JSON Crash Course - https://youtu.be/KdweixONFyA
In this Python Programming Tutorial for Beginners video I am going to show you How to Work With JSON Data in Python . In addition I am going to show Read and Write JSON to a File in Python. So we will see How to convert dict, list, tuple, str, integer, float, boolean to Json using python built in json package and How to Parse JSON in Python. This tutorial will give you basic Understanding of JSON Data Format with Python.

Conversions
From:

https://docs.python.org/3/library/jso...
JSON--to--Python
object--to--dict
array--to--list
string--to--str
number (int)--to--int
number (real)--to--float
true--to--True
false--to--False
null--to--None

How to create Json ? and Where Json can be used in today's Software development processes and programming languages. “JSON” stands for “JavaScript Object Notation”
Despite the name, JSON is a (mostly) language-independent way of specifying objects as name-value pairs. Json Commonly used in Web as a vehicle to describe data being sent between systems. JSON or JavaScript Object Notation is a lightweight text-based open standard designed for human-readable data interchange.I will show you how to create JSON objects and arrays and also how to make a .json file

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