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In Python, what is the difference between “.append()” and “+= []”?

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Is it possible to change a UIButtons background color?

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Make an HTTP request with android

I have searched everywhere but I couldn't find my answer, is there a way to make an simple HTTP request? I want to request an PHP page / script on one of my website but I don't want to show the webpage. ...
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Which exception should I raise on bad/illegal argument combinations in Python?

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Why is string concatenation faster than array join?

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Reset identity seed after deleting records in SQL Server

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How to sort an array by a date property

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When to use volatile with multi threading?

...ng the variable in a register and it thus not getting updated correctly. However two threads both accessing a shared variable is something which calls for protection via a mutex isn't it? But in that case, between the thread locking and releasing the mutex the code is in a critical section where on...
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How do I package a python application to make it pip-installable?

...ting a django application in my spare time for a footy-tipping competition we're running at work. I figured I'd use this time wisely, and get up to speed on virtualenv, pip, packaging, django 1.3, and how to write an easily redistributable application. So far, so good. ...
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How can I perform a reverse string search in Excel without using VBA?

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