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What are metaclasses in Python?
...lass in Python you really just want to subclass type.
A metaclass is most commonly used as a class-factory. When you create an object by calling the class, Python creates a new class (when it executes the 'class' statement) by calling the metaclass. Combined with the normal __init__ and __new__ met...
How can I return pivot table output in MySQL?
... a pivot table.
A nice tutorial on how to achieve this can be found here: http://www.artfulsoftware.com/infotree/qrytip.php?id=78
I advise reading this post and adapt this solution to your needs.
Update
After the link above is currently not available any longer I feel obliged to provide some add...
Android Writing Logs to text File
... a look at microlog4android. They have a solution ready to log to a file.
http://code.google.com/p/microlog4android/
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Django 1.7 throws django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet
... edited May 23 '17 at 12:34
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answered Dec 11 '14 at 15:35
Nick SpacekNick Spa...
Efficient evaluation of a function at every cell of a NumPy array
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C++0x has no semaphores? How to synchronize threads?
Is it true that C++0x will come without semaphores? There are already some questions on Stack Overflow regarding the use of semaphores. I use them (posix semaphores) all the time to let a thread wait for some event in another thread:
...
Google Sheets API Setup · App Inventor 2 中文网
...if you have not already done so, begin by navigating to
https://www.google.com and create a google account. Once you have done so,
navigate to https://developers.google.com and sign in to your desired Google
Account. This does not need to be the google account which will own the Google
Sheets that y...
How does JavaScript .prototype work?
... use of the word "prototype" is the source of endless confusion amongst newcomers to the language.
Using new with constructor functions allows us to simulate classical inheritance in JavaScript; although JavaScript's inheritance system is - as we have seen - prototypical, and not class-based.
Prio...
Delete local Git branches after deleting them on the remote repo
...c-testing
remotes/origin/master
remotes/origin/test-services
Reference:
http://git-scm.com/book/en/v2/Git-Branching-Remote-Branches
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Java FileReader encoding issue
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