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pip broke. how to fix DistributionNotFound error?

...s problem in my MacBook, the reason is because as @Stephan said, I use easy_install to install pip, and the mixture of both py package manage tools led to the pkg_resources.DistributionNotFound problem. The resolve is: easy_install --upgrade pip Remember: just use one of the above tools to manag...
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Mimicking sets in JavaScript?

...the list is a little safer with this: if (Object.prototype.hasOwnProperty.call(obj, A)) // put code here } because of potential conflict between built-in methods and/or properties on the base Object like the constructor property. Sidebar on ES6: The current working version of ECMAScript 6 or s...
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Difference Between Cohesion and Coupling

... example of low cohesion at the top looks pretty good, I think you accidentally meant to say "high cohession" – relipse Mar 4 '16 at 14:45 39 ...
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How do I create a link using javascript?

....attr('href',desiredLink); a.text(desiredText); $('body').append(a); In all the above examples you can append the anchor to any element, not just to the 'body', and desiredLink is a variable that holds the address that your anchor element points to, and desiredText is a variable that holds the te...
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How do I auto size a UIScrollView to fit its content

...careful when Scroll Indicators are enabled! a UIImageView will be automatically created for each one by the SDK. you must account for it or else your content size will be wrong. ( see stackoverflow.com/questions/5388703/… ) – AmitP Oct 26 '14 at 15:58 ...
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Safely override C++ virtual functions

...ake the compiler check if the function I declared in the derived class actually overrides a function in the base class? I would like to add some macro or something that ensures that I didn't accidentally declare a new function, instead of overriding the old one. ...
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Explanation of strong and weak storage in iOS5

... storage. I have read the documentation and other SO questions, but they all sound identical to me with no further insight. ...
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Difference between -pthread and -lpthread while compiling

...that get defined when the -pthread option gets used on the GCC package installed on my Ubuntu machine: $ gcc -pthread -E -dM test.c > dm.pthread.txt $ gcc -E -dM test.c > dm.nopthread.txt $ diff dm.pthread.txt dm.nopthread.txt 152d151 < #define _REENTRANT 1 208d206 < #define _...
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Why do people say that Ruby is slow? [closed]

I like Ruby on Rails and I use it for all my web development projects. A few years ago there was a lot of talk about Rails being a memory hog and about how it didn't scale very well but these suggestions were put to bed by Gregg Pollack here. ...
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Writing handler for UIAlertAction

...ActionStyle.Destructive,handler: { action in print("pressed") })) All the answers above are correct i am just showing another way that can be done. share | improve this answer | ...