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setup.py examples?

...through Python packages on the Python Package Index. Just download the tarball, unpack it, and have a look at the setup.py file. Or even better, only bother looking through packages that list a public source code repository such as one hosted on GitHub or BitBucket. You're bound to run into one on t...
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Where does Chrome store extensions?

...s local paths, they are left in the place where there are selected from in all Operating Systems. Ex: If i load a unpacked Extension from E:\Chrome Extension the unpacked Extension is still in the same location Storage Location for Packed Extensions Navigate to chrome://version/ and look for Prof...
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Manually raising (throwing) an exception in Python

... How do I manually throw/raise an exception in Python? Use the most specific Exception constructor that semantically fits your issue. Be specific in your message, e.g.: raise ValueError('A very specific bad thing happened.') Don't ...
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git: undo all working dir changes including new files

...leading ../). So I had to cd ../ up into the second location directory in order to delete the second file using that command. – Chris22 Dec 3 '18 at 20:11 ...
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How to implement an abstract class in ruby?

I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like... ...
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How to efficiently count the number of keys/properties of an object in JavaScript?

...t only iterates through the object but also creates a whole new array with all its keys, so it completely fails at answering the question. – GetFree Jun 22 '12 at 14:28 43 ...
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How do you build a Singleton in Dart?

... There's the weird syntax Singleton._internal(); that looks like a method call when it's really a constructor definition. There's the _internal name. And there's the nifty language design point that Dart lets you start out (dart out?) using an ordinary constructor and then, if needed, change it to a...
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Is there a foreach loop in Go?

...pec#For_range A "for" statement with a "range" clause iterates through all entries of an array, slice, string or map, or values received on a channel. For each entry it assigns iteration values to corresponding iteration variables and then executes the block. As an example: for index, e...
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Why should text files end with a newline?

I assume everyone here is familiar with the adage that all text files should end with a newline. I've known of this "rule" for years but I've always wondered — why? ...
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Number of elements in a javascript object

... Although JS implementations might keep track of such a value internally, there's no standard way to get it. In the past, Mozilla's Javascript variant exposed the non-standard __count__, but it has been removed with version 1.8.5. For cross-browser scripting you're stuck with explicitly ite...