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1. Python Programming For Beginners
Python Programming For
Beginners
Quick And Easy Guide For Python
Programmers
By:
James P. Long
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2. James P. Long
Acknowledgments
For my students and friends, who all selflessly helped me in writing this book. Special
thanks to those who asked, insisted and assisted me in turning the seminars in this
practical form. All Rights Reserved 2012-2014 @ James P. Long

3. Python Programming For Beginners
Table of Contents
Introduction
•What is Python Programming?
•History
Why is Python Used?
Features Of Python
Installing Python To System
Writing Programs in Python
•Interactive Mode Programming
•Script Mode Programming
Basics Of Python
•Python Identifiers
•Lines and Indentation
•Comments
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4. James P. Long
•Literal Constants
•Multi-Line Statements
•Quotation in Python
•Command Line Arguments
•Objects & Classes
•Variable Types
Python Data Types
•Boolean values
•Numbers
•Strings
•Tuples
•Lists
•Sets
•Dictionaries
•Sequence
•Reference
Python Operators
Control Flows in Python
•If Statement
•For Statement
•While Statement
•Break Statement
•Continue Statement

5. Python Programming For Beginners
•Pass Statement
Python Date & Time
Python Functions
•Calling a Function
•Pass by Reference in Function
•The Return Statement
•Python Lambda Function
•Python Arguments And Parameters
•Python Parameters
Global And Local variables in Python
•Local Variables
•Global Variables
Modules in Python
• The import Statement
• The from...import Statement
• The from...import * Statement
• Module Names
• Locating modules
• Executing modules
• Making Your Own Modules
• The dir() function
Packages in Python
Python Exceptions Handling
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6. James P. Long
•Hierarchy of Exceptions
•User defined exceptions
•The cleanup
Some Other Functions To Perform In Python
•Reading Keyboard Input
•Opening and Closing Files
•The file object attributes
•Reading and Writing Files
•Renaming and Deleting Files
•Directories in Python
Note
Introduction
What is Python Programming?
Python is a wide used general, high-level programming language. Its style philosophy
emphasizes code readability, and its syntax allows programmers to precise ideas in fewer
lines of code that might be possible in languages like C++ or Java. The language provides
constructs supposed to modify clear programs on both small and large scales.
Python is a simple to learn, powerful programming language. It’s economical high-level
information structures and an easy but effective approach to object-oriented programming.
Python’s elegant syntax and dynamic typing, in conjunction with its interpreted nature,
make it a perfect language for scripting and speedy application development in several
areas on most platforms. Python is one in all those rare languages which might claim to
both easy and powerful. You may end up pleasantly stunned to examine how easy it's to

7. Python Programming For Beginners
think about the answer to the matter instead of the syntax and structure of the language
you are programming in.
Python supports multiple programming paradigms, as well as object-oriented, imperative
and useful programming or procedural designs. It features a dynamic type system and
automatic memory management and contains a giant and a comprehensive customary
library.
Python interpreters are available for installation on several operational systems, allowing
Python code execution on a majority of systems. Using third-party tools, like Py2exe or
Pyinstaller, Python code will be packaged into complete workable programs for a few of the
most fashionable operational systems, letting the distribution of Python-based software
system to use in those environments without requiring the installation of a Python
interpreter.
Python is a programming language that's freely available. It will be written once and run on
nearly any PC with no need to alter the program. In this book, you can learn a lot about
what Python is, how it's used, and the way it compares to other programming languages.
History
Python was first created by Guido van Rossum in 1990 and was named when the Brit-come
Monty Python's Flying Circus. It’s since been developed by an oversized team of volunteers
and is freely available from the Python software system Foundation.
Python is currently found in several incarnations. At the website of the Python software
system Foundation, Python is written in C, other incarnations also exist. A Java-based
version of Python exists in Jython and should be used to work with Java code natively. Iron
Python, a C# version, exists for the.Net and Mono platforms and allows C# programmers
access to Python's power and flexibility. In each of those instances, Python is written in one
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8. James P. Long
language and works natively therewith language; but, it also interacts with other languages
through its several modules.
For functions of analysis and development, there's also a Python implementation written in
Python itself. The project PyPy was based in 2003 to modify Python programmers to alter
the behavior of the Python interpreter at can. Whereas it's an open source project, being
developed overtly by a community of developers for gratis distribution and modification,
PyPy is also supported by the European Union as a Specified Targeted Research Project
(STReP), part of the FP6 funding program.
Summary
Python is so an exciting and powerful language. It’s the proper combination of performance
and features that make writing programs in Python both fun and simple.
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