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Two way/reverse map [duplicate]
...d['foo']
>>> d['bar']
Traceback (most recent call last):
File "<stdin>", line 7, in <module>
KeyError: 'bar'
I'm sure I didn't cover all the cases, but that should get you started.
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Getting Java version at runtime
...}
Now you can check the version much more comfortably:
if(getVersion() < 6) {
// ...
}
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hexadecimal string to byte array in python
...e("hex") is working on Python 2.7. I just tested on my Python 2.7.10 (default, May 23 2015, 09:44:00) [MSC v.1500 64 bit (AMD64)] on win32.
– MewX
Oct 22 '17 at 1:10
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What does a type followed by _t (underscore-t) represent?
...t16_t, uint_fast32_t, and so on. These new types are formally defined in <stdint.h> but most often you will use <inttypes.h> which (unusually for standard C headers) includes <stdint.h>. It (<inttypes.h>) also defines macros for use with the printf() and scanf().
As Matt C...
join list of lists in python [duplicate]
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result = []; map(result.extend, a) is ~30% faster than itertools.chain. But chain.from_iterable is a tiny bit faster than map+extend. [Python 2.7, x86_64]
– temoto
Jun 20 '11 at 2:23
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What is the difference between sigaction and signal?
...signal() function (usually) resets the signal action back to SIG_DFL (default) for almost all signals. This means that the signal() handler must reinstall itself as its first action. It also opens up a window of vulnerability between the time when the signal is detected and the handler is reinstal...
Convert tuple to list and back
...ing on a map editor for a game in pygame, using tile maps.
The level is built up out of blocks in the following structure (though much larger):
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How to detect iPhone 5 (widescreen devices)?
... double )[ [ UIScreen mainScreen ] bounds ].size.height - ( double )568 ) < DBL_EPSILON )
The use of fabs with the epsilon is here to prevent precision errors, when comparing floating points, as pointed in the comments by H2CO3.
So from now on you can use it in standard if/else statements:
if...
Element-wise addition of 2 lists?
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@deltab The accepted answer is faster AND it contains this answer (more informative)
– Sibbs Gambling
Sep 11 '13 at 10:02
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Use latest version of Internet Explorer in the webbrowser control
The default version of the webbrowser control in a C# Windows Forms
application is 7. I have changed to 9 by the article Browser Emulation , but how is it possible to use the latest version of the installed Internet Explorer in a webbrowser control?
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