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How to import a Python class that is in a directory above?

...on __file__ to find out the parent directory (a couple of os.path.dirname calls will do;-), then (if that directory is not already on sys.path) prepend temporarily insert said dir at the very start of sys.path, __import__, remove said dir again -- messy work indeed, but, "when you must, you must" (a...
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Django dynamic model fields

...rks) This solution is based on Entity Attribute Value data model, essentially, it uses several tables to store dynamic attributes of objects. Great parts about this solution is that it: uses several pure and simple Django models to represent dynamic fields, which makes it simple to understand an...
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Is there an online name demangler for C++? [closed]

...d implementations of demanglers are horribly buggy and insecure. They basically only work on mangled names that the same platform produced, but may run into high complexity or flat out memory errors on general inputs. – Kerrek SB Mar 29 '17 at 0:07 ...
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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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How to limit the amount of concurrent async I/O operations?

... Stephen Toub, but the less announced news is that the async semaphore actually made it into the Beta release of .NET 4.5 If you look at our beloved SemaphoreSlim class (which you should be using since it's more performant than the original Semaphore), it now boasts the WaitAsync(...) series of ove...
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How can I quantify difference between two images?

...s on the first image to edges on the second. Is there noise in the image? All sensors pollute the image with some amount of noise. Low-cost sensors have more noise. You may wish to apply some noise reduction before you compare images. Blur is the most simple (but not the best) approach here. What k...
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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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How do you produce a .d.ts “typings” definition file from an existing JavaScript library?

...initelyTyped/DefinitelyTyped) first. This is a community repo full of literally thousands of .d.ts files and it's very likely the thing you're using is already there. You should also check TypeSearch (https://microsoft.github.io/TypeSearch/) which is a search engine for NPM-published .d.ts files; th...
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Python: Get relative path from comparing two absolute paths

...ou can even handle more than two paths, with this method, and test whether all the paths are all below one of them. PS: depending on how your paths look like, you might want to perform some normalization first (this is useful in situations where one does not know whether they always end with '/' or...
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Sphinx autodoc is not automatic enough

...for modules project.module1 and project.module2 will be generated automatically and placed into _autosummary directory. PROJECT ======= .. toctree:: .. autosummary:: :toctree: _autosummary project.module1 project.module2 By default autosummary will generate only very short summaries fo...