Python: Learn Python In A DAY! - The Ultimate Crash Course to Learning the Basics of Python In No Time

130 Pages·2015·0.89 MB·English

By Acodemy
© Copyright 2015
All rights reserved. No portion of this book may be reproduced – mechanically,
electronically, or by any other means, including photocopying without the
permission of the publisher
LEARN PYTHON IN A DAY
The Ultimate Crash Course to Learning the
Basics of Python in No Time
Disclaimer

The information provided in this book is designed to provide helpful information on the subjects discussed.
The author’s books are only meant to provide the reader with the basics knowledge of a certain topic,
without any warranties regarding whether the student will, or will not, be able to incorporate and apply all
the information provided. Although the writer will make his best effort share his insights, learning is a
difficult task and each person needs a different timeframe to fully incorporate a new topic. This book, nor
any of the author’s books constitute a promise that the reader will learn a certain topic within a certain
timeframe.
Table of Contents
Chapter 1: Introduction
What is Python and why learn it?
Installation
Your First “Hello World” Program
Running Code Interactively VS Running Scripts
Variables and Datatypes
Basic Operators
Arithmetic Operators
Comparison Operators
Assignment Operators
Summary
Assignment
Chapter 2: Sequences
What are sequences?
Accessing sequence items through indexing
Splitting sequences
Negative indexing
Working with lists
Working with strings
String formatting
Summary
Exercises
Chapter 3: Collections
Sets
Dictionaries
Working with Sets
Working with Dictionaries
Summary
Assignment
Chapter 4: Conditionals
If Statements
If-else Statements
Receiving user input
Elif Statements
Inline if
Summary
Assignment
Chapter 5: Loops
What are loops?
For-loop
While-loop
List Comprehensions
Summary
Assignment
Chapter 6: Custom Functions
What are custom functions?
Defining and calling a function
Functions with multiple parameters
Functions with default parameters
Summary
Assignment
Chapter 7: Classes
What are classes?
Defining a class
Inheritance
Summary
Assignment
Chapter 8: Modules and Packages
What are modules?
What are packages?
Working with modules and packages
Installing external modules and packages
Code introspection
Creating your own module
Summary
Assignment
Chapter 9: File Handling
Opening a file with Python
Reading a text file
Writing inside a text file
Creating a new text file
Reading, writing and creating new binary files
Handling files easier with "with"
Working with directories
Changing the current working directory and creating new ones
Deleting files and directories
Summary
Assignment
Chapter 10: Other Advanced Functionalities
About this chapter
Commenting you code
Errors and Exceptions
Handling exceptions
Database handling
Regular expressions
Matching more than one pattern
Summary
Assignment
Chapter 11: Conclusion
Chapter 1: Introduction
Chapter objectives: You will learn what Python is.
You will be able to understand why Python is a good programming
language to learn and what Python is used for.
You will learn how to install the latest version of Python You will write
your first Python program.
You will understand how to run Python code lines interactively and also
how to create Python scripts.
You will learn how to declare variables in Python and how to assign
different data types to them.
You will be able to perform basic math operations and get the expected
output.
What is Python and why learn it?
Python is a high-level programming language that was conceived in the late
1980s and implemented in 1989. Python is widely used for a wide range of
applications which are:
Web and internet development
Database access
Creating desktop graphical interfaces
Scientific and numeric
Education
Network programming
Software and game development
Python is strongly labeled as an extremely readable language, and it often stands
out of other programming language due to its distinct syntax which allows us
programmers, and prospective programmers to write programs and scripts in
very few lines of code. Its readability and efficiency has made Python a very
popular language which has reflected to an increase in job demand.
Python is a pure object-oriented language meaning that
Figure 1: Trend for Python jobs (UK)
the language is designed based on objects. In Python, everything is an object and
every object has attributes and methods. Being an object-oriented programming
language includes Python in the stack of the modern programming languages
that consume most of the programming industry today.
Python is a cross-platform language designed to work the same in every
computer operating system. Because Python has become such a popular