IT

 Definitions 

                  Basic Elements Of Python

Scripts: 

A python program is sometimes called scripts, is a sequence  of definitions  and commands

shell:

These definition are evaluated and the commands are executed by python interpreter in something is called shell. Generally shell are created when program  execution begins.In this tutorial we will use the shell format because for python learner it is very helpful to use shell format.

 

statements:

A command is often called Statement,give instruction to interpreter to do something special.

 

 

 Example of Statements 

 

The statement print(‘hello world’) instructed the interpreter to call the print function which give the output hello world in string form.

 

 

Sequence of Commands

print ("Yankees rule!")

print ("but in bostan!")

print ("Yankees rule!","but in bostan!")

output  

Yankees rule!

but in bostan!

Yankees rule!,but in bostan!

 

2 ...Python Introduction

 

What is Python?

Python is a popular programming language. It was created by Guido van Rossum, and released in 1991.

It is used for:

• web development (server-side),
• software development,
• mathematics,
• system scripting.

What can Python do?

• Python can be used on a server to create web applications.
• Python can be used alongside software to create workflows.
• Python can connect to database systems. It can also read and modify files.
• Python can be used to handle big data and perform complex mathematics.
• Python can be used for rapid prototyping, or for production-ready software development.

Why Python?

• Python works on different platforms (Windows, Mac, Linux, Raspberry Pi, etc).
• Python has a simple syntax similar to the English language.
• Python has syntax that allows developers to write programs with fewer lines than some other programming languages.
• Python runs on an interpreter system, meaning that code can be executed as soon as it is written. This means that prototyping can be very quick.
• Python can be treated in a procedural way, an object-oriented way or a functional way.

Good to know

• The most recent major version of Python is Python 3, which we shall be using in this tutorial. However, Python 2, although not being updated with anything other than security updates, is still quite popular.
• In this tutorial Python will be written in a text editor. It is possible to write Python in an Integrated Development Environment, such as Thonny, Pycharm, Netbeans or Eclipse which are particularly useful when managing larger collections of Python files.

Python Syntax compared to other programming languages

• Python was designed for readability, and has some similarities to the English language with influence from mathematics.
• Python uses new lines to complete a command, as opposed to other programming languages which often use semicolons or parentheses.
• Python relies on indentation, using whitespace, to define scope; such as the scope of loops, functions and classes. Other programming languages often use curly-brackets for this purpose.    

1. Objectives

 In the this course the student will be introduced to the field of computer science. The student will gain essential knowledge and will learn programming concepts with particular attention to solving real world problems. In this course the student will acquire skills in problem analysis, solution design and program construction. 

2. Reference Material

 • Abelson, Harold, Gerald Jay Sussman, and Julie Sussman. Structure and interpretation of computer programs. Justin Kelly, 1996. • Knuth, Donald. The Art of Programming. Addison-Wesley. 1968. • Website: composingprograms.com

3. Course Organization

·         Day                           Topics

·         Day 1                         Course orientation, introduction and motivation

·         Day 2                         Problem Solving Intro to CS program courses

·         Day 3                         Operating systems; cloud computing; containers; web services

·         Day 4                          Introduction to programming. Case study: Newton’s square root method

·         Day 5                          Elements of programming

·         Day 6                          Control structures

·         Day 7                          Arrays, lists, dictionaries

·         Day 8                          Defining new data types; basics of abstraction

·         Day 9                          Defining new functions Lexical scopes Recursion

·         Day 10                        File handling Exceptions

·         Day 11                        Data abstractions, sequences, mutable data

·         Day 12                        Object abstractions Handling problems

·         Day 13                        Static data types Pointers Memory management basics

·         Day 14                        function parameters; passing by value and by ref-  Higher order  functions

·         Day 15                        Project Presentations               

                                                                  Best luck..