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Creating a singleton in Python
...), {})): pass
class Logger(Singleton):
pass
An ironic aspect of this approach is that it's using subclassing to implement a metaclass. One possible advantage is that, unlike with a pure metaclass, isinstance(inst, Singleton) will return True.
Corrections
On another topic, you've probably alrea...
How exactly do Django content types work?
...en models. Blah blah, let's dive into some code and see what I mean.
# ourapp.models
from django.conf import settings
from django.db import models
# Assign the User model in case it has been "swapped"
User = settings.AUTH_USER_MODEL
# Create your models here
class Post(models.Model):
author = m...
Setting Corner Radius on UIImageView not working
...e layer property of UIView to round the corners of multiple elements in my app. However, this one UIImageView is simply not complying. Not sure what I am missing.
...
How many bits or bytes are there in a character? [closed]
...
some legacy apps still use 1 byte chars with local codepages, but all NT versions of Windows internally run with 2-byte characters (UCS-2 up to NT4, UTF-16 from Windows 2000 onwards, stored as wchar_t), not only Asian ones, and so should...
How to get current location in Android [duplicate]
...m/reference/android/location/…, float,android.location.Criteria, android.app.PendingIntent)
– Axxiss
Feb 14 '14 at 10:56
...
OAuth 2.0: Benefits and use cases — why?
...ent provider (e.g. Facebook, Twitter, etc.) to assure a server (e.g. a Web app that wishes to talk to the content provider on behalf of the client) that the client has some identity. What three-legged authentication offers is the ability to do that without the client or server ever needing to know t...
How is Docker different from a virtual machine?
...istine copy of the database and will make changes to the data. The classic approach to this is to reset the database after every test either with custom code or with tools like Flyway - this can be very time-consuming and means that tests must be run serially. However, with Docker you could create a...
Technically what is the main difference between Oracle JDK and OpenJDK? [duplicate]
...
Wow, such confuse. So after Java 7, when you package an app with OpenJDK-JRE, it's identical to packaging it with Oracle ServerJDK-JRE?
– Pacerier
Jul 28 '17 at 16:10
...
Run Java Code Online [closed]
...
OpenCode appears to be a project at the MIT Media Lab for running Java Code online in a web browser interface. Years ago, I played around a lot at TopCoder. It runs a Java Web Start app, though, so you would need a Java run time insta...
Ruby : How to write a gem? [closed]
... best resources for writing your own gem.
If you're using Bundler in your app, you might want to look at Ryan Bigg's guide to Developing a RubyGem using Bundler and the Railscast on creating gems with Bundler.
If you're interested in tools to help you write gems:
Jeweler - Opinionated tool for c...