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How do I implement interfaces in python?
... Pythons Abstract Base Classes, introduced in Python 2.6. They are useful, if you want to make base classes that cannot be instantiated, but provide a specific interface or part of an implementation.
Another usage is if you somehow want to specify that an object implements a specific interface, and...
How to divide flask app into multiple py files?
...me__)
app.register_blueprint(simple_page)
Blueprints can also bundle specific resources: templates or static files. Please refer to the Flask docs for all the details.
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Does reading an entire file leave the file handle open?
If you read an entire file with content = open('Path/to/file', 'r').read() is the file handle left open until the script exits? Is there a more concise method to read a whole file?
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How to find out which package version is loaded in R?
... LC_TELEPHONE=C LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] graphics grDevices utils datasets stats grid methods base
other attached packages:
[1] ggplot2_0.9.0 reshape2_1.2.1 plyr_1.7.1
loaded via a namespac...
jQuery: How can i create a simple overlay?
...An overlay is, simply put, a div that stays fixed on the screen (no matter if you scroll) and has some sort of opacity.
This will be your CSS for cross browser opacity of 0.5:
#overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: #000;
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Fatal error: “No Target Architecture” in Visual Studio
...
_WIN32 identifier is not defined.
use #include <SDKDDKVer.h>
MSVS generated projects wrap this include by generating a local "targetver.h"which is included by "stdafx.h" that is comiled into a precompiled-header through "stdafx.c...
__init__ for unittest.TestCase
...
Just wanted to add some clarifications about overriding the init function of
unittest.TestCase
The function will be called before each method in your test class. Please note that if you want to add some expensive computations that should be performed...
Why do x86-64 systems have only a 48 bit virtual address space?
...al answer is that AMD was just being cheap and hoped nobody would care for now, but I don't have references to cite.
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How to HTML encode/escape a string? Is there a built-in?
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Now that would be silly. I don't care much if it gets escaped or not. I'm just noting it's not required per the html specs.
– kch
Mar 28 '09 at 15:20
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Invalid argument supplied for foreach()
...able to remove the other two classes, @Kris. They both extend Traversable now and seem to have been born that way in 5.0.0. Though I'm feeling a tiny doubt as to whether instanceof always applied to extends.
– Bob Stein
Mar 8 '14 at 10:44
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