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Archive for the ‘Interesting’ Category

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What is a tuple?

I get asked this from time to time, so for the fun of it, I’ll post this:
Tuples are immutable lists in python (and other languages).  Very lightweight, unchangable arrays.  They are used for storing multiple values in one variable (usually a fixed number of values).
x = (1, 2, 3, ‘abc’)
x[0]
-> 1
x[1] 
-> 2
x[2] 
-> 3

x[3] 
-> abc
x["bob"]
-> [...]

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Ever have one of those bugs that customers complain about, but you just cannot reproduce it? Here is a good one…
Customers were complaining about being logged out when clicking a download link.
This particular setup is a Cisco CSS 11501 series load balancer with 2 Dell Poweredge web servers sitting behind it.  Each webserver is running [...]

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I think this is a really cool picture.  It is one from a set at http://www.smashingmagazine.com/2008/08/24/45-beautiful-motion-blur-photos/

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