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What do *args and **kwargs mean? [duplicate]

...e it like this: def my_sum(*args): return sum(args) It’s probably more commonly used in object-oriented programming, when you’re overriding a function, and want to call the original function with whatever arguments the user passes in. You don’t actually have to call them args and kwarg...
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Getting the class name of an instance?

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How to move screen without moving cursor in Vim?

...pping, at least swap two locks like caps <--> num - but the issue is more forgetting that it's on, because if you wanted it before, you'll keep using it, by whatever map. Risk breaking Vim before files/user/system. – John P Aug 9 '17 at 22:59 ...
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What is a “feature flag”?

...Fowler also has a much longer article than the one linked above with a lot more details. This post (on Fowler's site also) explains the various types of toggle strategies. DevCookie supports the mainline/trunk-based strategy and is called a "Release Toggle" in the article. Adil's answer highlight...
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Shorter syntax for casting from a List to a List?

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log4net vs. Nlog

...facades that break these essential diagnostic features that ended up doing more harm that good... – James Schek Feb 10 '10 at 22:58 11 ...
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What is the difference between $(command) and `command` in shell programming?

...ts that there are some differences between the backticks and $(), which is more explained in this part of the documentation. The differences is not only about nesting. – Some programmer dude Jul 10 '16 at 5:15 ...
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Concatenating two one-dimensional NumPy arrays

...ser391339, what if you wanted to concatenate three arrays? The function is more useful in taking a sequence then if it just took two arrays. – Winston Ewert Jul 12 '16 at 17:13 ...
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Do the JSON keys have to be surrounded by quotes?

...ructure is represented as a pair of curly brackets surrounding zero or more name/value pairs (or members). A name is a string. A single colon comes after each name, separating the name from the value. A single comma separates a value from a following name. The names within an obj...
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Ruby on Rails: how do I sort with two columns using ActiveRecord?

...ly breaking with "ambiguous column" messages, you should use the following more robust version: :order => ["DATE(#{table_name}.updated_at)", :price] (Note that :price is a symbol.) – Jo Liss Jul 31 '12 at 17:32 ...