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Python extending with - using super() Python 3 vs Python 2
...s one class only), your new class inherits methods of the base class. This includes __init__. So if you don't define it in your class, you will get the one from the base.
Things start being complicated if you introduce multiple inheritance (subclassing more than one class at a time). This is becaus...
Is using 'var' to declare variables optional? [duplicate]
...think your insight deserves more exposure so I edited the chosen answer to include this information.
– Bruno Bronosky
Sep 21 '12 at 7:59
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Using arrays or std::vectors in C++, what's the performance gap?
... gcc 4.1.0 invoked with g++ -O3 -S on a
// x86_64-suse-linux machine.
#include <vector>
struct S
{
int padding;
std::vector<int> v;
int * p;
std::vector<int>::iterator i;
};
int pointer_index (S & s) { return s.p[3]; }
// movq 32(%rdi), %rax
// movl 12(...
SQL SELECT speed int vs varchar
...ate types. 8 bytes for a 64-bit number 4 bytes per-character in a string, including either a length byte or struct; or another terminator character for incredibly naive implementations...
– MrMesees
May 13 '16 at 4:59
...
bash: pip: command not found
...local/bin/pip
You can either edit your ~/.profile and update your PATH to include /Library/Frameworks/Python.framework/Versions/2.6/bin, or you could create a symlink to it in a place that you know is in your path.
If you do: echo $PATH, you should see the paths currently being searched. If /usr/...
How to tell which version of a gem a rails app is using
...t mean when you type bundle show and you get a bunch of Gems with versions including "rails 2.3.17) and you type rake gems and you get what looks like a legend (I=Installed, etc) but no gems/versions? Do I have rails version 2 or not? Maybe I have rails version 2 and a more advanced bundler? Is t...
Why do indexes in XPath start with 1 and not 0?
...SS version 1.0 was released by December of 2000. With the v1.0 update, RSS included support for XML.
During 2002 v2.0 was released in September as RSS (Really Simple Syndication) and began to evolve into a major internet technology. In it’s early history, RSS feeds (and the XML data they containe...
Xcode 4: create IPA file instead of .xcarchive
...ublic" into "Project".
Now they don't get installed in $(BUILD)/usr/local/include, and I'm able to make an ipa file from the archive!
I hope Apple fixes this horrible usability problem with XCode. It gives absolutely no indication of what's wrong, it just doesn't work. I hate dimmed out controls ...