Schedule

Schedule

Wednesday, April 1

1427902200 FLOSS Weekly
1427907600 Tech News Today
1427911200 Windows Weekly
1427918400 This Week in Google
1427929200 Tech News 2Night
1427931000 Android App Arena
1427936400 Ham Nation

Thursday, April 2

1427994000 Tech News Today
1427997600 Know How...
1428003000 Marketing Mavericks
1428008400 Home Theater Geeks
1428015600 Tech News 2Night
1428017400 The Giz Wiz

Friday, April 3

1428080400 Tech News Today
1428084000 This Week in Law
1428094800 Before You Buy
1428102000 Tech News 2Night
1428105600 Padre's Corner

Saturday, April 4

1428170400 The Tech Guy

Sunday, April 5

1428256800 The Tech Guy
1428271200 This Week in Tech

Monday, April 6

1428339600 Tech News Today
1428343200 Triangulation
1428348600 iPad Today
1428355800 Coding 101
1428361200 Tech News 2Night

Tuesday, April 7

1428426000 Tech News Today
1428429600 MacBreak Weekly
1428438600 Security Now
1428447600 Tech News 2Night
1428451200 All About Android

Wednesday, April 8

1428507000 FLOSS Weekly
1428512400 Tech News Today
1428516000 Windows Weekly
1428523200 This Week in Google
1428534000 Tech News 2Night
1428535800 Android App Arena
1428541200 Ham Nation

Thursday, April 9

1428598800 Tech News Today
1428602400 Know How...
1428607800 Marketing Mavericks
1428613200 Home Theater Geeks
1428620400 Tech News 2Night
1428622200 The Giz Wiz

Friday, April 10

1428685200 Tech News Today
1428688800 This Week in Law
1428699600 Before You Buy
1428706800 Tech News 2Night
1428710400 Padre's Corner

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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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