Schedule

Schedule

Sunday, December 21

1419188400 The Tech Guy
1419202800 This Week in Tech

Monday, December 22

1419271200 Tech News Today
1419274800 Triangulation
1419280200 iPad Today
1419292800 Tech News 2Night

Tuesday, December 23

1419357600 Tech News Today
1419361200 MacBreak Weekly
1419368400 Security Now
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1419379200 Tech News 2Night
1419382800 All About Android
1419391800 Padre's Corner

Wednesday, December 24

1419444000 Tech News Today
1419447600 Windows Weekly
1419454800 This Week in Google
1419465600 Tech News 2Night

Thursday, December 25

1419530400 Tech News Today
1419534000 Know How...
1419537600 Marketing Mavericks
1419543000 Coding 101
1419546600 Home Theater Geeks
1419553800 The Giz Wiz

Friday, December 26

1419616800 Tech News Today
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Saturday, December 27

1419706800 The Tech Guy

Sunday, December 28

1419793200 The Tech Guy
1419807600 This Week in Tech

Monday, December 29

1419876000 Tech News Today
1419879600 Triangulation
1419885000 iPad Today
1419897600 Tech News 2Night

Tuesday, December 30

1419962400 Tech News Today
1419966000 MacBreak Weekly
1419973200 Security Now
1419980400 Before You Buy
1419984000 Tech News 2Night
1419987600 All About Android
1419996600 Padre's Corner

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Know How...

In case you didn't know this is Episode 123

Coding 101 11

Python: Getting Started

April 3 2014

Hosts: Fr. Robert Ballecer, SJ and Shannon Morse

Guest: Dale Chase

This week we are introducing our newest module, Python with Code Warrior Dale Chase!

How to Install Python

Go to Python.org and click on Python 2.7.6 under "Download". Choose the installer package for your operating system and click on them. The file will be downloaded. It is important to download 2.7 because 3.4.0 is NOT compatible with our lessons. If you want more information on what the differences are between 3.x and 2.x, please check out this handy information.
** Note: Python is AUTOMATICALLY INCLUDED ON Mac OS X ... however, you should probably download the latest rev2 version. **

Viewer submissions and questions will be back next week!

To see all the code used in today's episode, go to Our Github Repository for Module 2

Ivory Tower

Compiled vs. Interpreted Languages
* Compiled languages are reduced to a set of machine-specific instructions before being saved as a executable file
* Intepreted Languages are saved in the same format that you entered, then converted into machine language "Just in Time" - when they are needed.
-- Compiled Languages generally run faster, but are a little trickier to develop since they much be compiled for each platform that may use the program
-- Interpreted Languages generally run more slowly than Interpreted languages, but are more convienent for developers.

Whitespace
* In C#, you ended a line of code by typing ";"
* In Python, the WHITESPACE deliniated lines of code

Dynamic Variables
* In C#, we had to explicity declare variables to reserve memory space.

INT (Integer) = 2 Bytes 65536
LONG INT (Integer) = 4 Bytes 4,294,967,296
CHAR (Character) = 1 Byte 256
FLOAT (Floating Point = 4 Bytes 4,294,967,296

* We had to tell C# EXACTLY what type of data would be going into the variable, and it would reserve the necessary space in memory.

** We don't have to do that in Python.
-- Variables in Python are declared AUTOMATICALLY when a value is stored in the variable.

Here's how it works.
"Var1 = 100
Var2 = ""Hello World""
Var3 = ""3.14""" "This becomes an INT
This becomes a STRING
This Becomes a FLOAT"

Python has several Data Types:
"* Numbers
* Strings
* Lists
* Tuple
* Dictionary" "* (int, long, float, complex)
* Contiguous Set of Characters
* Arrays
* Read-Only Lists
* A Hash Table
"

Output to Screen
print "Hello World"
- or -
"Yo = ""Hellow World""
print Yo"

Input from user:
* Python has a built-in function called "raw_input()"
* When you use this function as follows:
"var1 = raw_input(""What's your age?"")
print var1"

Get in Touch With Us!

* Subscribe and get Coding 101 automatically at TWiT.tv!
* Follow PadreSJ and Snubs on Twitter.
* Watch the show live and join the chatroom every Thursday at 1:30pm PST.
* Email us at Padre@twit.tv and Shannon@twit.tv.
* Join our Google+ Community!

Download or subscribe to this show at twit.tv/code. Also, check out our transcripts.

Bandwidth for Coding 101 is provided by Cachefly.

Running time: 41:31

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