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How to convert Nonetype to int or string?

I've got an Nonetype value x , it's generally a number, but could be None . I want to divide it by a number, but Python raises: ...
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Make xargs execute the command once for each line of input

How can I make xargs execute the command exactly once for each line of input given? It's default behavior is to chunk the lines and execute the command once, passing multiple lines to each instance. ...
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Why is isNaN(null) == false in JS?

This code in JS gives me a popup saying "i think null is a number", which I find slightly disturbing. What am I missing? 8 ...
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Finding local IP addresses using Python's stdlib

How can I find local IP addresses (i.e. 192.168.x.x or 10.0.x.x) in Python platform independently and using only the standard library? ...
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Regex to validate password strength

My password strength criteria is as below : 11 Answers 11 ...
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In Ruby how do I generate a long string of repeated text?

What is the best way to generate a long string quickly in ruby? This works, but is very slow: 2 Answers ...
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Disable orange outline highlight on focus

I am coding an app using jQuery, jqTouch and phonegap and have run across a persistent problem which arises when a user submits a form using the Go button on the soft keyboard. ...
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adding noise to a signal in python

I want to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic. 7 Answer...
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How to do version numbers? [closed]

My company is building a product. It's going to be versioned by SVN. It's a webapp so basically there will never be a version out which doesn't have some features in them and thus could always be labeled as beta. But since it's going to be a corporate product I really don't want the "unstable watcho...
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Circle line-segment collision detection algorithm?

I have a line from A to B and a circle positioned at C with the radius R. 27 Answers ...