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Django: How do I add arbitrary html attributes to input fields on a form?

... earlier to modify 3 fields: ``` for field_name in ['image', 'image_small', 'image_mobile']: field = self.fields.get(field_name) field.widget.attrs['data-file'] = 'file' ``` – Stuart Axon Jun 6 '14 at 11:59 ...
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How to delete all Annotations on a MKMapView

Is there a simple way to delete all the annotations on a map without iterating through all the displayed annotations in Objective-c? ...
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How can mixed data types (int, float, char, etc) be stored in an array?

... @texasbruce also called a "tagged union". I'm using this technique too in my own language. ;) – user529758 Sep 2 '13 at 16:50 ...
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python generator “send” function purpose?

...t's useful, one of the best use cases I've seen is Twisted's @defer.inlineCallbacks. Essentially it allows you to write a function like this: @defer.inlineCallbacks def doStuff(): result = yield takesTwoSeconds() nextResult = yield takesTenSeconds(result * 10) defer.returnValue(nextResu...
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Calling C/C++ from Python?

...e Boost Python Library is a framework for interfacing Python and C++. It allows you to quickly and seamlessly expose C++ classes functions and objects to Python, and vice-versa, using no special tools -- just your C++ compiler. It is designed to wrap C++ interfaces non-intrusively, so that y...
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Django database query: How to get object by id?

Django automatically creates an id field as primary key. 6 Answers 6 ...
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Calendar Recurring/Repeating Events - Best Storage Method

... didn't want to have a large number of rows, and I wanted to easily lookup all events that would take place on a specific date. The method below is great at storing repeating information that occurs at regular intervals, such as every day, every n days, every week, every month every year, etc etc. ...
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Is there a way to crack the password on an Excel VBA Project?

...y best to explain how it works - please excuse my English. The VBE will call a system function to create the password dialog box. If user enters the right password and click OK, this function returns 1. If user enters the wrong password or click Cancel, this function returns 0. After the dialog bo...
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What does FETCH_HEAD in Git mean?

...it like doing git fetch without arguments (or git remote update), updating all your remote branches, then running git merge origin/<branch>, but using FETCH_HEAD internally instead to refer to whatever single ref was fetched, instead of needing to name things. ...
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How to remove non-alphanumeric characters?

I need to remove all characters from a string which aren't in a-z A-Z 0-9 set or are not spaces. 9 Answers ...