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Django in / not in query

...e(); Tbl2.objects.filter(id__in=IDs') This did not work because IDs is actually a QuerySet object. When I deleted the rows it originated from, it no longer worked with other queries. The solution is Tbl2.objects.filter(id__in=list(IDs)) -- turn it into a list – Dakusan ...
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How can I use numpy.correlate to do autocorrelation?

...olution, C(t)=∑ -∞ < i < ∞ aivt+i where -∞ < t < ∞, allows for results from -∞ to ∞, but you obviously can't store an infinitely long array. So it has to be clipped, and that is where the mode comes in. There are 3 different modes: full, same, & valid: "full" mode r...
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UML class diagram enum

... answered Feb 2 '12 at 17:32 Tom MorrisTom Morris 9,7712828 silver badges4848 bronze badges ...
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Upgrading PHP in XAMPP for Windows?

...a backup of your htdocs and data folder (subfolder of MySQL folder), reinstall upgraded version and replace those folders. Note: In case you have changed config files like PHP (php.ini), Apache (httpd.conf) or any other, please take back up of those files as well and replace them with newly install...
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Python Sets vs Lists

...move the object creation now. The setup phase of the timeit loops is only called once (docs.python.org/2/library/timeit.html#timeit.Timer.timeit). – Ellis Percival Sep 30 '14 at 10:09 ...
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How to provide user name and password when connecting to a network share

... 0); if (result != 0) { throw new Win32Exception(result); } } ~NetworkConnection() { Dispose(false); } public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } protected virtual voi...
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Getting Django admin url for an object

...e was an easy way to get the admin url of an object, and I had written a small filter that I'd use like this: <a href="{{ object|admin_url }}" .... > ... </a> ...
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Circular (or cyclic) imports in Python

... There was a really good discussion on this over at comp.lang.python last year. It answers your question pretty thoroughly. Imports are pretty straightforward really. Just remember the following: 'import' and 'from xxx import yyy' ...
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How to join two JavaScript Objects, without using JQUERY [duplicate]

... merge them and crete a single json object. The resultant json should have all the values from obj2 and the values from obj1 which is not present in obj2. ...
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Where does Scala look for implicits?

... Implicits in Scala refers to either a value that can be passed "automatically", so to speak, or a conversion from one type to another that is made automatically. Implicit Conversion Speaking very briefly about the latter type, if one calls a method m on an object o of a class C, and that class d...