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What are the differences between the urllib, urllib2, urllib3 and requests module?

In Python, what are the differences between the urllib , urllib2 , urllib3 and requests modules? Why are there three? They seem to do the same thing... ...
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Converting between java.time.LocalDateTime and java.util.Date

Java 8 has a completely new API for date and time. One of the most useful classes in this API is LocalDateTime , for holding a timezone-independent date-with-time value. ...
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How do I convert an integer to binary in JavaScript?

I’d like to see integers, positive or negative, in binary. 13 Answers 13 ...
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Automatically start forever (node) on system restart

I am using node's forever module to keep my node server running. Forever however terminates when there is a system restart. Is there any way I can automatically start the node server (with forever) when the system restarts? ...
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AngularJS - how to get an ngRepeat filtered result reference

I am using an ng-repeat directive with filter like so: 6 Answers 6 ...
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How does inline Javascript (in HTML) work?

I know this is bad practice. Don't write code like this if at all possible. 6 Answers ...
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Unable to simultaneously satisfy constraints, will attempt to recover by breaking constraint

Below is the error message I receive in the debug area. It runs fine and nothing is wrong except that I receive this error. Would this prevent apple accepting the app? How do I fix it? ...
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What does the comma operator , do?

What does the , operator do in C? 8 Answers 8 ...
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How do I use NSTimer?

How do I use an NSTimer ? Can anyone give me step by step instructions? 6 Answers 6 ...
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Sending an HTTP POST request on iOS

I'm trying to send an HTTP Post with the iOS application that I'm developing but the push never reaches the server although I do get a code 200 as response (from the urlconnection). I never get a response from the server nor does the server detect my posts (the server does detect posts coming from a...