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Python read-only property
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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 sense for an attribute to be settable ...
Are (non-void) self-closing tags valid in HTML5?
The W3C validator doesn't like self-closing tags (those that end with " /> ") on non-void elements. (Void elements are those that may not ever contain any content.) Are they still valid in HTML5?
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Statistics: combinations in Python
...al.comb (scipy.misc.comb in older versions of scipy). When exact is False, it uses the gammaln function to obtain good precision without taking much time. In the exact case it returns an arbitrary-precision integer, which might take a long time to compute.
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HTML5 Canvas vs. SVG vs. div
...The short answer:
SVG would be easier for you, since selection and moving it around is already built in. SVG objects are DOM objects, so they have "click" handlers, etc.
DIVs are okay but clunky and have awful performance loading at large numbers.
Canvas has the best performance hands-down, but y...
Re-raise exception with a different type and message, preserving existing information
I'm writing a module and want to have a unified exception hierarchy for the exceptions that it can raise (e.g. inheriting from a FooError abstract class for all the foo module's specific exceptions). This allows users of the module to catch those particular exceptions and handle them distinctly,...
If i synchronized two methods on the same class, can they run simultaneously?
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Both methods lock the same monitor. Therefore, you can't simultaneously execute them on the same object from different threads (one of the two methods will block until the other is finished).
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How does the NSAutoreleasePool autorelease pool work?
As I understand it, anything created with an alloc , new , or copy needs to be manually released. For example:
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Truly understanding the difference between procedural and functional
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Functional Programming
Functional programming refers to the ability to treat functions as values.
Let's consider an analogy with "regular" values. We can take two integer values and combine them using the + operator to obtain a new integer. Or we can multiply an integer by a floating p...
How to check if a number is between two values?
...the browser to do something if the window size is greater than 500px. I do it like so:
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Non-static variable cannot be referenced from a static context
I've written this test code:
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