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CSS: How to position two elements on top of each other, without specifying a height?

...ut descendants, into the same row and column. Please check example below, based on Your HTML. I added only <span> and some colors, so You can see the result. You can also easily change z-index each of descendant elements, to manipulate its visibility (which one should be on top). .cont...
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How do I raise the same Exception with a custom message in Python?

...ocs.python.org/2/library/exceptions.html - "exception EnvironmentError The base class for exceptions that can occur outside the Python system: IOError, OSError. When exceptions of this type are created with a 2-tuple, the first item is available on the instance’s errno attribute (it is assumed to ...
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Using logging in multiple modules

...nce of logging library in multiple modules for me was following solution: base_logger.py import logging logger = logging logger.basicConfig(format='%(asctime)s - %(message)s', level=logging.INFO) Other files from base_logger import logger if __name__ == '__main__': logger.info("This is an...
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What's the difference between Spring Data's MongoTemplate and MongoRepository?

...yourCustomMethod() { // custom implementation here } } Now let your base repository interface extend the custom one and the infrastructure will automatically use your custom implementation: interface UserRepository extends CrudRepository<User, Long>, CustomUserRepository { } This w...
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How can I initialize base class member variables in derived class constructor?

...{ B() { a = 0; b = 0; } }; You can't access base members in the initializer list, but the constructor itself, just as any other member method, may access public and protected members of the base class. ...
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Non-alphanumeric list order from os.listdir()

...can use the builtin sorted function to sort the strings however you want. Based on what you describe, sorted(os.listdir(whatever_directory)) Alternatively, you can use the .sort method of a list: lst = os.listdir(whatever_directory) lst.sort() I think should do the trick. Note that the orde...
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How can I measure the actual memory usage of an application or process?

...zing these files is massif-visualizer. But I found ms_print, a simple text-based tool shipped with Valgrind, to be of great help already. To find memory leaks, use the (default) memcheck tool of valgrind. share | ...
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How to display a content in two-column layout in LaTeX?

... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers. Draft saved Draft discarded ...
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Fast stable sorting algorithm implementation in javascript

...lyfill to implement a stable sort regardless of the native implementation, based on the assertion made in this answer: // ECMAScript 5 polyfill Object.defineProperty(Array.prototype, 'stableSort', { configurable: true, writable: true, value: function stableSort (compareFunction) { ...
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How do you match only valid roman numerals with a regular expression?

... numeral letter). Should work in PCRE, Perl, Python and Ruby. Online Ruby demo: http://rubular.com/r/KLPR1zq3Hj Online Conversion: http://www.onlineconversion.com/roman_numerals_advanced.htm share | ...