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How to clear variables in ipython?

Sometimes I rerun a script within the same ipython session and I get bad surprises when variables haven't been cleared. How do I clear all variables? And is it possible to force this somehow every time I invoke the magic command %run? ...
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Django - filtering on foreign key properties

... This has been possible since the queryset-refactor branch landed pre-1.0. Ticket 4088 exposed the problem. This should work: Asset.objects.filter( desc__contains=filter, project__name__contains="Foo").order_by("desc") The Django Many-to-one documentation has this and oth...
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What’s the best way to reload / refresh an iframe?

...yId('some_frame_id').location.reload(); The method that worked for both FF and Chrome was document.getElementById('iframeid').src = document.getElementById('iframeid').src – Mike Bevz Aug 11 '11 at 13:09 ...
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Is there a C++ decompiler? [closed]

...bout how compilers convert C++ structures. – Michael Anderson Apr 11 '13 at 5:32 ...
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AngularJS - placeholder for empty result from filter

... The problem is that the "Nothing here!" part is shown and hidden really quickly. When you get data with an ajax request there is an delay before the returned data is shown and in that time you can see the "Nothing here!" part appear and disappear. – Temega ...
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Find most frequent value in SQL column

...umn` ORDER BY `value_occurrence` DESC LIMIT 1; Replace column and my_table. Increase 1 if you want to see the N most common values of the column. share | improve this answer | ...
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CSS strikethrough different color from text?

... (Note, however, that <strike> is considered deprecated in HTML4 and obsolete in HTML5 (see also W3.org). The recommended approach is to use <del> if a true meaning of deletion is intended, or otherwise to use an <s> element or style with text-decoration CSS as in the first exa...
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DbEntityValidationException - How can I easily tell what caused the error?

...s. You can catch the DbEntityValidationException, unwrap the actual errors and create a new DbEntityValidationException with the improved message. Create a partial class next to your SomethingSomething.Context.cs file. Use the code at the bottom of this post. That's it. Your implementation will a...
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Remove empty array elements

...n array of strings, you can simply use array_filter(), which conveniently handles all this for you: print_r(array_filter($linksArray)); Keep in mind that if no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed. So if you need to preserve element...
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In c# is there a method to find the max of 3 numbers?

...e, but not regularly. (Note that this is likely to be more efficient than Andrew's LINQ-based answer - but obviously the more elements you have the more appealing the LINQ approach is.) EDIT: A "best of both worlds" approach might be to have a custom set of methods either way: public static class...