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How do I raise the same Exception with a custom message in Python?
...essage " +e.message)
This will also do the right thing if err is derived from ValueError. For example UnicodeDecodeError.
Note that you can add whatever you like to err. For example err.problematic_array=[1,2,3].
Edit: @Ducan points in a comment the above does not work with python 3 since .me...
Can I mix Swift with C++? Like the Objective-C .mm files
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No. When you switch from .m to .mm you are actually switching from Objective-C to a different language (which has many subtle differences) called Objective-C++. So you're not really using C++; you're using Objective-C++ which accepts most C++ as...
What is the difference between a database and a data warehouse?
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Check out this for more information.
From a previous link:
Database
Used for Online Transactional Processing (OLTP) but can be used for other purposes such as Data Warehousing. This records the data from the user for history.
The tables and joins are complex ...
How do you attach and detach from Docker's process?
I can attach to a docker process but Ctrl + c doesn't work to detach from it. exit basically halts the process.
15 Ans...
C++ Modules - why were they removed from C++0x? Will they be back later on?
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From the State of C++ Evolution (Post San Francisco 2008), the Modules proposal was categorized as "Heading for a separate TR:"
These topics are deemed too important to wait for another standard after C++0x before being p...
How are msys, msys2, and msysgit related to each other?
... software - the stated goal of MSYS - we ported the Pacman package manager from Arch Linux. Pacman is more than just about managing binary packages (though it does that very well). It has a software building infrastructure called makepkg that allows the creation of recipes (PKGBUILD and patch files)...
How to get just the responsive grid from Bootstrap 3?
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Go to http://getbootstrap.com/customize/ and toggle just what you want from the BS3 framework and then click "Compile and Download" and you'll get the CSS and JS that you chose.
Open up the CSS and remove all but the grid. They include some normalize stuff too. And you'll need to adjust all t...
“Could not find any information for class named ViewController”
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What solved this issue for me was actually deleting the class from the project.
Steps:
In the project file explorer (left panel) find the class and right click -> Delete
Remove reference (do not move to trash as you will lose the class for good)
Right click on the folder that cont...
What does it mean that Javascript is a prototype based language?
...es a class, which defines an object. Multiple objects can be instantiated from the same class, so you have code in one place which describes several objects in your program. Classes can then be organized into a hierarchy, furthering code reuse. More general code is stored in a higher-level class,...
What's the difference between a Python module and a Python package?
... is a collection of modules in directories that give a package hierarchy.
from my_package.timing.danger.internets import function_of_love
Documentation for modules
Introduction to packages
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