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What exactly does += do in python?

I need to know what += does in python. It's that simple. I also would appreciate links to definitions of other short hand tools in python. ...
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Read-only and non-computed variable properties in Swift

... Right now (Swift 3.0.1) Access Control Levels changed: "fileprivate" declaration can be accessed only by code in the same source file as the declaration”. "private" declaration can be accessed only by code within the declaration...
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Can Selenium Webdriver open browser windows silently in background?

... "--no-startup-window" is now deprecated – Corey Goldberg Nov 10 '17 at 4:16 5 ...
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What is the { get; set; } syntax in C#?

...aid, I'm a beginner so I can't tell you exactly why //it's there but I do know it's essential) Now that we've created the instances of the Genre class we can set the genre names using the 'Name' property that was set way up above. public string Name //Again, this is the 'Name' property { get; set...
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How to overload __init__ method based on argument type?

...is using Python's excellent support for named arguments to implement this. Now, if I want to read the data from a file, I say: obj.read(filename="blob.txt") And to read it from a string, I say: obj.read(str="\x34\x55") This way the user has just a single method to call. Handling it inside, as ...
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How to find where a method is defined at runtime?

..., after a series of commits had occurred, a backend process failed to run. Now, we were good little boys and girls and ran rake test after every check-in but, due to some oddities in Rails' library loading, it only occurred when we ran it directly from Mongrel in production mode. ...
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Why call git branch --unset-upstream to fixup?

... version: remote-tracking branch origin/master used to exist, but does not now, so local branch source is tracking something that does not exist, which is suspicious at best—it means a different Git feature is unable to do anything for you—and Git is warning you about it. You have been getting ...
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How to calculate the bounding box for a given lat/lng location?

I have given a location defined by latitude and longitude. Now i want to calculate a bounding box within e.g. 10 kilometers of that point. ...
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Method Resolution Order (MRO) in new-style classes?

...ry interpretation of C3 linearization as follows: (Someone please let me know if this is wrong.) Consider this example: class I(G): def m(self): print("I") super().m() class H(): def m(self): print("H") class G(H): def m(self): print("G") supe...
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Unsupported major.minor version 52.0 [duplicate]

... "J2SE" was only used till Java 1.5 and is nowadays called "Java SE", see en.wikipedia.org/wiki/Java_Platform,_Standard_Edition – Tim Büthe Sep 6 '16 at 14:38 ...