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Get key by value in dictionary

...he problem can be easily generalised. For example you could have a look up table with unique keys and their corresponding unique values. You can then look up things symmetrically value --> key or key --> value – pfabri May 13 at 16:34 ...
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Is there a simple, elegant way to define singletons? [duplicate]

... I don't really see the need, as a module with functions (and not a class) would serve well as a singleton. All its variables would be bound to the module, which could not be instantiated repeatedly anyway. If you do wish to use a cla...
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Case insensitive Query with Spring CrudRepository

...ing code works for me return entityManager.createQuery("select q from "table " q where upper(q.applicant)=:applicant") .setParameter("applicant",applicant.toUpperCase().trim()).getSingleResult(); share | ...
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Multiple cases in switch statement

... User could use some if's (or a table lookup) to reduce the input to a set of enums and switch on the enum. – Harvey Jul 28 '13 at 20:00 ...
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Can I use __init__.py to define global variables?

I want to define a constant that should be available in all of the submodules of a package. I've thought that the best place would be in in the __init__.py file of the root package. But I don't know how to do this. Suppose I have a few subpackages and each with several modules. How can I access th...
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How to set versionName in APK filename using gradle?

...ind, but doesn't work well with flavors with different version codes. They all end up with same version code. – weston May 6 '17 at 15:08 2 ...
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Python read-only property

... Generally, Python programs should be written with the assumption that all users are consenting adults, and thus are responsible for using things correctly themselves. However, in the rare instance where it just does not make sens...
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Get class that defined method

...ited Jun 20 '14 at 19:44 Aaron Hall♦ 260k6969 gold badges353353 silver badges303303 bronze badges answered Jun 7 '09 at 2:23 ...
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How can I create a copy of an object in Python?

...would like to create a copy of an object. I want the new object to possess all properties of the old object (values of the fields). But I want to have independent objects. So, if I change values of the fields of the new object, the old object should not be affected by that. ...
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How to match “any character” in regular expression?

... Not always dot is means any char. Exception when single line mode. \p{all} should be – martian May 25 '17 at 15:26 ...