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Why are Python's 'private' methods not actually private?

... The name scrambling is used to ensure that subclasses don't accidentally override the private methods and attributes of their superclasses. It's not designed to prevent deliberate access from outside. For example: >>> class Foo(object): ... def __init__(self): ... self....
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Is either GET or POST more secure than the other?

...e would be to pass it using Secure HTTP. GET or query string posts are really good for information required for either bookmarking a particular item, or for assisting in search engine optimization and indexing items. POST is good for standard forms used to submit one time data. I wouldn't use G...
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How do I read any request header in PHP

... IF: you only need a single header, instead of all headers, the quickest method is: <?php // Replace XXXXXX_XXXX with the name of the header you need in UPPERCASE (and with '-' replaced by '_') $headerStringValue = $_SERVER['HTTP_XXXXXX_XXXX']; ELSE IF: you run PHP...
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Get event listeners attached to node using addEventListener

... You can't. The only way to get a list of all event listeners attached to a node is to intercept the listener attachment call. DOM4 addEventListener Says Append an event listener to the associated list of event listeners with type set to type, listener set to ...
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How do JavaScript closures work?

...clared outside the function, regardless of when and where the function is called. If a function was called by a function, which in turn was called by another function, then a chain of references to outer lexical environments is created. This chain is called the scope chain. In the following code, in...
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if A vs if A is not None:

... The statement if A: will call A.__nonzero__() (see Special method names documentation) and use the return value of that function. Here's the summary: object.__nonzero__(self) Called to implement truth value testing and the built-in operation ...
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Why can't I overload constructors in PHP?

I have abandoned all hope of ever being able to overload my constructors in PHP, so what I'd really like to know is why . ...
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How do I profile memory usage in Python?

... This one has been answered already here: Python memory profiler Basically you do something like that (cited from Guppy-PE): >>> from guppy import hpy; h=hpy() >>> h.heap() Partition of a set of 48477 objects. Total size = 3265516 bytes. Index Count % Size % Cumulat...
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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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How do I run all Python unit tests in a directory?

...it test module is of the form test_*.py . I am attempting to make a file called all_test.py that will, you guessed it, run all files in the aforementioned test form and return the result. I have tried two methods so far; both have failed. I will show the two methods, and I hope someone out there ...