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How can you dynamically create variables via a while loop? [duplicate]

...ould just use a dictionary, where you can dynamically create the key names and associate a value to each. a = {} k = 0 while k < 10: <dynamically create key> key = ... <calculate value> value = ... a[key] = value k += 1 There are also some interesting dat...
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Difference between array_map, array_walk and array_filter

What exactly is the difference between array_map , array_walk and array_filter . What I could see from documentation is that you could pass a callback function to perform an action on the supplied array. But I don't seem to find any particular difference between them. ...
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Efficient way to determine number of digits in an integer

...1; if (x < 100) return 2; etc., so that the function will do less tests and exit faster. – squelart Sep 28 '09 at 23:44 29 ...
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Python JSON serialize a Decimal object

I have a Decimal('3.9') as part of an object, and wish to encode this to a JSON string which should look like {'x': 3.9} . I don't care about precision on the client side, so a float is fine. ...
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git pull fails “unable to resolve reference” “unable to update local ref”

...remote prune origin man git-gc(1): git-gc - Cleanup unnecessary files and optimize the local repository git gc [--aggressive] [--auto] [--quiet] [--prune=<date> | --no-prune] Runs a number of housekeeping tasks within the current repository, such as compressing file revisions ...
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What integer hash function are good that accepts an integer hash key?

... a multiplier that is in the order of your hash size (2^32 in the example) and has no common factors with it. This way the hash function covers all your hash space uniformly. Edit: The biggest disadvantage of this hash function is that it preserves divisibility, so if your integers are all divisibl...
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Should switch statements always contain a default clause?

...pe! based on the language, // there should probably be some error-handling // here, maybe an exception } 2. To handle 'default' actions, where the cases are for special behavior. You see this a LOT in menu-driven programs and bash shell scripts. You might also see this when a vari...
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An existing connection was forcibly closed by the remote host

...ng an HTTPS request to an HTTP server) The network link between the client and server is going down for some reason You have triggered a bug in the third-party application that caused it to crash The third-party application has exhausted system resources It's likely that the first case is what's h...
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How to exit from Python without traceback?

... You are presumably encountering an exception and the program is exiting because of this (with a traceback). The first thing to do therefore is to catch that exception, before exiting cleanly (maybe with a message, example given). Try something like this in your main r...
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jQuery Call to WebService returns “No Transport” error

... 1 Take a look at this blog post. Update 2 If this is indeed the problem (and I suspect it is), you might want to check out JSONP as a solution. Here are a few links that might help you get started: https://en.wikipedia.org/wiki/JSON http://remysharp.com/2007/10/08/what-is-jsonp/ http://www.west-...