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Serializing class instance to JSON

...N for your class. A simple solution would be to call json.dumps() on the .__dict__ member of that instance. That is a standard Python dict and if your class is simple it will be JSON serializable. class Foo(object): def __init__(self): self.x = 1 self.y = 2 foo = Foo() s = js...
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ObjectiveC Parse Integer from String

... NSArray *_returnedArguments = [serverOutput componentsSeparatedByString:@":"]; _returnedArguments is an array of NSStrings which the UITextField text property is expecting. No need to convert. Syntax error: [_appDelegate loggedIn...
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What is __stdcall?

... __stdcall is the calling convention used for the function. This tells the compiler the rules that apply for setting up the stack, pushing arguments and getting a return value. There are a number of other calling conventions...
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Lodash - difference between .extend() / .assign() and .merge()

... An important difference seems to be that while _.merge returns a new merged object, _.extend mutates the destination object in-place, – letronje Feb 13 '15 at 9:31 ...
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Why do we use __init__ in Python classes?

...ical piece of understanding: the difference between a class and an object. __init__ doesn't initialize a class, it initializes an instance of a class or an object. Each dog has colour, but dogs as a class don't. Each dog has four or fewer feet, but the class of dogs doesn't. The class is a concept o...
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Python constructor and default value [duplicate]

...don't generally do what you want. Instead, try this: class Node: def __init__(self, wordList=None, adjacencyList=None): if wordList is None: self.wordList = [] else: self.wordList = wordList if adjacencyList is None: self.adjacencyL...
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When are C++ macros beneficial? [closed]

... As wrappers for debug functions, to automatically pass things like __FILE__, __LINE__, etc: #ifdef ( DEBUG ) #define M_DebugLog( msg ) std::cout << __FILE__ << ":" << __LINE__ << ": " << msg #else #define M_DebugLog( msg ) #endif ...
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Does Flask support regular expressions in its URL routing?

...flask import Flask from werkzeug.routing import BaseConverter app = Flask(__name__) class RegexConverter(BaseConverter): def __init__(self, url_map, *items): super(RegexConverter, self).__init__(url_map) self.regex = items[0] app.url_map.converters['regex'] = RegexConverter ...
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What is the difference between __dirname and ./ in node.js?

...ere in relation to your current directory, is there any reason to use the __dirname variable instead of just a regular ./ ? I've been using ./ thus far in my code and just discovered the existence of __dirname , and essentially want to know whether it would be smart to convert my ./'s to that, a...
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Python Process Pool non-daemonic?

... The multiprocessing.pool.Pool class creates the worker processes in its __init__ method, makes them daemonic and starts them, and it is not possible to re-set their daemon attribute to False before they are started (and afterwards it's not allowed anymore). But you can create your own sub-class o...