Basics of loops & for loop

Lesson Details:

I: Introduction

What are programming languages?

Programming Languages are the tools used to create computer programs. These programs are written in programming languages, which can be compiled or interpreted into machine code by a compiler. A program written in a high-level language can be translated into commands understood by a computer, rather than needing to be explained, line by line, in binary. Programming languages allow programmers to write instructions for computers to perform specific tasks, without having to worry about the technical details of how the instructions will be executed.

Programming languages can be grouped according to their purpose, but they are often created to satisfy the needs of a particular problem domain. For example, there is a group of languages that are designed for writing applications for the operating system, and another group of languages that are designed for writing applications for web servers. Languages can also be grouped according to their paradigm (i.e., the style of the language). For example, Java and C++ are object-oriented languages; C is not. Some languages support only object-oriented features; others support procedural programming.

A programming language is defined by its syntax and semantics. Syntactic meaning is the set of rules that govern how the language constructs are formed (the grammar), whereas semantic meaning (meaning or sense) is the set of rules that govern the interpretation of these constructions (the meaning of words). The specification of the syntax and semantics is done by describing a formal language.

The best known classifications are: structural classification, based on the syntax (the way symbols are put together); and semantic classification, based on the meaning.

The field of programming languages has a strict scientific foundation, but it is also a practical field where programming languages must be designed for efficient implementation and use. To ensure efficiency, many language designers have been involved in defining languages that can give results with lesser amounts of computation or memory usage.

II: Body

Simple Structure: In this article we will learn Python programming, which is easy to understand and contains simple structure. In other words, its syntax is simple and easy to understand. It does not contain any complexity that makes it difficult to grasp. It is very easy to learn and use it. The main aim of this article is to teach you Python Programming for beginners with a simple interface so that you can easily understand the basic concepts and get a clear idea about Python programming language.

Following Topics will be covered in this article:

Learning Python Basics Loops in Python For Loop Python Classes Functions in Python Output Formats Python Modules File Handling Regular Expressions in Python OOPS in Python Simple Web Application Database Application File Downloading from External Websites Example of Web Crawler Simple Client Server Applications Summary

III: Conclusion

In this article we have learned about Python programming from scratch that would help us in understanding the basics of Python Programming and its different features and tools. So let’s start learning the basics of Python Programming: