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1414191600 Tech News 2Night

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1414260000 The Tech Guy

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1414346400 The Tech Guy
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1414429200 Tech News Today
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1414701000 Coding 101
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1414864800 The Tech Guy

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1414954800 The Tech Guy
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Most Recent Episodes

The Giz Wiz

Pumpkin power saw, 3D scanner, and more.

Home Theater Geeks

Problems observed in Cinema Audio Systems.

Coding 101

Finishing the app building module.

Tech News 2Night

Etsy's new dongle, Aereo's legal future

Know How...

Hoverboards, Sticky Windows, and Quadcopter Pt. 2

Marketing Mavericks

Fan engagement with sports.

Tech News Today

Facebook alternative Ello raised $5.5 million in new venture funding.

Ham Nation

Gordon West explains why use a dipole.

This Week in Google
Episode #272: Check Your Inbox October 22nd, 2014

Google looks to reinvent email with Inbox.

Tech News 2Night

Homeboy security cam, Microsoft's app Garage

Coding 101 17

Python: Tuples

May 15 2014

Hosts: Fr. Robert Ballecer, SJ and Shannon Morse

Guest: Dale Chase

Welcome to Coding 101 - It's the TWiT show that gives YOU the knowledge to live in the wonderful world of the programmer. This week we are introducing our newest module, Python with Code Warrior Dale Chase!

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

Printing Everything within a List:

The way we've been printing lists is to use a "for loop" to print everything within the list:

podcasters = ['Leo','Lisa','Padre', 'Snubs', 'Bryan', 'OMGchad']

for entries in range (0,6):

- print podcasters[entries]

* This will print each individual entry on its own line.

If we JUST wanted to know the contents of the list:

mylist = [142, 512, 'dog', 'cat', 'bird', 123]

print mylist

* This will print EVERYTHING that is in the list "mylist" - including the comas, spaces and brackets

Sorting the List

-- We've been using "destructive sorting" with the "list.sort()" function
-- When we use "sort()" on a list, we sort "IN PLACE" which destroys the original list

SortMe = [1, 23, 6, 4, 99]

for entries in range (0,5):

- print SortMe[entries]

raw_input ("Press Enter")

SortMe.sort();

for entries in range (0,5):

- print SortMe[entries]
"

NON-DESTRUCTIVE SORTING
-- We can do a non-destructive sorting of a list.
-- It keep the original list while sorting the data.

podcasters = ['Leo','Lisa','Padre', 'Snubs', 'Bryan', 'OMGchad', 1234]

print podcasters

print "Woot, let's sort!"

sortedpodcasters = sorted(podcasters)

raw_input(""Press Enter to Continue"")

print podcasters

print sortedpodcasters
"

We can ALSO sort WITHOUT creating a new list

podcasters = ['Leo','Lisa','Padre', 'Snubs', 'Bryan', 'OMGchad', 1234]

print sorted(podcasters)
"

Tuples

* Tuples work like lists, but they are immutable. They cannot be changed.
- They use parentheses instead of brackets
- You can have a list of tuples.

twit_tuples = [

('Padre', 'TWiET', 72),
('Snubs', 'C101', 22),
('Bryan', 'KnowHow', 6),

]

print twit_tuples
"

Sorting Tuples

twit_tuples = [

('Padre', 'TWiET', 72),
('Snubs', 'C101', 22),
('Bryan', 'KnowHow', 6),

]

print sorted(twit_tuples, key=lambda twit: twit[2])

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.

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Running time: 53:01