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sys.argv[1] meaning in script

I'm currently teaching myself Python and was just wondering (In reference to my example below) in simplified terms what the sys.argv[1] represents. Is it simply asking for an input? ...
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Why does git perform fast-forward merges by default?

Coming from mercurial, I use branches to organize features. Naturally, I want to see this work-flow in my history as well. ...
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How to remove an item for a OR'd enum?

I have an enum like: 7 Answers 7 ...
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Why is === faster than == in PHP?

Why is === faster than == in PHP? 11 Answers 11 ...
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jQuery: select all elements of a given class, except for a particular Id

This is probably pretty simple. 6 Answers 6 ...
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When using a Settings.settings file in .NET, where is the config actually stored?

When using a Settings.settings file in .NET, where is the config actually stored? I want to delete the saved settings to go back to the default state, but can't find where it's stored... any ideas? ...
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How do I create an average from a Ruby array?

How would get find an average from an array? 20 Answers 20 ...
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Possible reasons for timeout when trying to access EC2 instance

I cannot SSH into my instance - Operation timed out. What could be the reasons why, and what can I do to resolve it? Rebooting normally takes a long time to take effect, and might just makes things worst ...
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Split string to equal length substrings in Java

How to split the string "Thequickbrownfoxjumps" to substrings of equal size in Java. Eg. "Thequickbrownfoxjumps" of 4 equal size should give the output. ...
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Array.Copy vs Buffer.BlockCopy

Array.Copy and Buffer.BlockCopy both do the same thing, but BlockCopy is aimed at fast byte-level primitive array copying, whereas Copy is the general-purpose implementation. My question is - under what circumstances should you use BlockCopy ? Should you use it at any time when you are copyi...