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2018-06-28T18:45:53Z

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2014-03-26T22:56:07Z

‎Video Turorials: <-- fix typo

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{{Page/Header|2.5|Doc:2.5/Manual/Extensions/Python/Add-Ons|Doc:2.5/Manual/Extensions/Python/Console}}

{{review|partial=X|text=Just started. If you have any suggestions, please add them in the discussion page. Thank you.}}

= Why another Python tutorial? =

This page exists for two reasons.

# To introduce Programming using Python 3.x quickly and efficiently.
# And most importantly teach inside of Blender's Console, so you can learn in context.
# See [[#External links|External links]] below

= What is Programming? =

Programming in simple terms is nothing more than manipulating data. Operations on the data either modifies it, or create new data.

The simplest data is Numbers. Operations on Numbers are addition, Subtraction, multiplication etc., Its the simplest type of data imaginable.

But for solving real world problems, we need have compound data, that is built from simpler data like numbers. A good example is Vector data type, that is built from 3 numbers.

During the course of this tutorial, we will take a look at what data types that Python language provides and how you can create your own custom data for your programs and also write operations that work with that data.

= What is Python? =
[http://www.python.org Python ] is an interpreted, interactive, object-oriented programming language. It incorporates modules, exceptions, dynamic typing, very high level dynamic data types, and classes. Python combines remarkable power with very clear syntax.

Learning Python is also very easy, even if you have never programmed before.

= Python Interpreter =
All the exercises in this tutorial will be using the built-in Console window type in Blender 2.6, which has a Python 3.2 interpreter embedded in it.

Following is a video that shows how you can switch to the interpreter.
<center> <youtube>Ge2Kwy5EGE0</youtube> </center>

[[File:Manual-Part-XX-Manual-Extensions-Python-Console-Default-Console.png|600px]]

You can start typing Python commands, expressions and statements at the interpreter prompt '''>>>'''

= Hello World =

Let's get started with the classical "Hello World" program.

Type the following print statement at the interpreter prompt and press {{Shortcut|Enter}} key.

[[File:Manual-Part-XX-Manual-Extensions-Python-Tutorial-Hello-World.jpg]]

Let's break down the above statement.
# ''"Hello World"'' is a string [http://en.wikipedia.org/wiki/Literal_(computer_science) literal] in Python.
## A string is a sequence of characters (numbers, alphabets, special characters)
# ''print()'' is a built-in function in Python to print output.
# ''print("Hello World")'' outputs ''Hello World'' to the console.

;'''Exercise''': Type the following commands and check the output
<source lang="python">
print('"Hello World"')
print("'Hello \n World'")
</source>

In Python, a string literal can be multiplied by a ''number''. By doing so we are repeating the string by the count specified by ''number''
* number * string literal
* string literal * number
* '''*''' is the multiplication operator in Python

[[File:Manual-Part-XX-Manual-Extensions-Python-Tutorial-Hello-World2.jpg]]

{{Note|Note|Check out [[Doc:2.6/Manual/Extensions/Python/Intro to Python/Examples|all the above examples in one place]]}}

= External links =

== Webpages ==

* http://www.sthurlow.com/python/

== Video Tutorials ==

* If you want to learn Python programming in general, have a look at this tutorials <playlist>EA1FEF17E1E5C0DA</playlist>

{{Page/Footer|Doc:2.5/Manual/Extensions/Python/Add-Ons|Doc:2.5/Manual/Extensions/Python/Console}}

[[Category:Script]]

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