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Django TemplateDoesNotExist?

...2.5/site-packages/projectname/templates/template3.html Second solution: If that still doesn't work and assuming that you have the apps configured in settings.py like this: INSTALLED_APPS = ( 'appname1', 'appname2', 'appname3', ) By default Django will load the templates under templ...
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Jackson and generic type reference

... This is a well-known problem with Java type erasure: T is just a type variable, and you must indicate actual class, usually as Class argument. Without such information, best that can be done is to use bounds; and plain T is roughly same as '...
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Python element-wise tuple operations like sum

... It also blows up if a & b don't contain the same number of elements, or aren't "addable" (ex: map(operator.add, (1,2), ("3", "4")) – Adam Parkin Feb 13 '12 at 21:09 ...
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Why is “copy and paste” of code dangerous? [closed]

...nge you ever need to make in the code (not just bugfixes, any change) will now be twice as expensive to do because you have to update two places - and more risky because you WILL forget one of them eventually. In other words, making it work faster now will make your work even slower in the future, w...
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Java abstract interface

... Interfaces and their methods are implicitly abstract and adding that modifier makes no difference. Is there other rules that applies with an abstract interface? No, same rules apply. The method must be implemented by any (concrete) implementing class. If abstract is obsolete, why is it ...
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Why are all fields in an interface implicitly static and final?

... An interface can't have behavior or state because it is intended to specify only an interaction contract, no implementation details. 'No behavior' is enforced by not allowing method/constructor bodies or static/instance initializing blocks. 'No state' is enforced by only allowing static final fie...
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Mysql - How to quit/exit from stored procedure

... @jlh it was wrong (text corrected now) in that I didn’t know about mysql’s label technique, but the code isn’t wrong - it will work, on any DB actually. – Bohemian♦ Nov 21 '18 at 14:53 ...
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not None test in Python [duplicate]

... if val is not None: # ... is the Pythonic idiom for testing that a variable is not set to None. This idiom has particular uses in the case of declaring keyword functions with default parameters. is tests identity in Pyt...
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Get operating system info

... show which operating system someone is using. What it does is that, it sniffs your core operating system model, for example windows nt 5.1 as my own. It then passes windows nt 5.1/i to Windows XP as the operating system. Using: '/windows nt 5.1/i' => 'Windows XP', from an array. You could s...
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Change SVN repository URL

...locate is used when the SVN server's location changes. switch is only used if you want to change your local working copy to another branch or another path. If using TortoiseSVN, you may follow instructions from the TortoiseSVN Manual. If using the SVN command line interface, refer to this section o...