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What is the difference between old style and new style classes in Python?

...(x) is always <type 'instance'>. This reflects the fact that all old-style instances, independently of their class, are implemented with a single built-in type, called instance. New-style classes were introduced in Python 2.2 to unify the concepts of class and type. A new-s...
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Is it possible to run a single test in MiniTest?

I can run all tests in a single file with: 13 Answers 13 ...
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Adding a directory to $LOAD_PATH (Ruby)

...so long as the memory usage is the same for each, which I assume it essentially is. – boulder_ruby Oct 12 '12 at 1:47 ...
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Why does Razor _layout.cshtml have a leading underscore in file name?

...ith the underscore. And the Web Pages framework has been configured not to allow files with leading underscores in their names from being requested directly. Other .cshtml files within Web Pages generally need to be browsable. They are the equivalent of .asp or .php files. The ASP.NET team have sta...
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How can I use UUIDs in SQLAlchemy?

... dialect supports UUID columns. This is easy (and the question is specifically postgres) -- I don't understand why the other answers are all so complicated. Here is an example: from sqlalchemy.dialects.postgresql import UUID from flask_sqlalchemy import SQLAlchemy import uuid db = SQLAlchemy() ...
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What is the minimum I have to do to create an RPM file?

... of dependencies. It has a config file, /etc/foobar.conf and should be installed in /usr/bin/foobar. 9 Answers ...
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What's the $unwind operator in MongoDB?

...hat it stores your data is in the form of documents and collections, which allows for a dynamic means of adding and obtaining the data from your storage locations. That being said, in order to understand the concept behind the $unwind parameter, you first must understand what the use case that you ...
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Get absolute path of initially run script

...tioning that, reading the documentation, there is no mention that the initially run script's path is the first item of the array returned by get_included_files(). I suggest to store __FILE__ into a constant at the beginning of the script meant to be initially run. – Paolo ...
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Separation of business logic and data access in django

...de is confusing and, after a certain time, I cease to understand what is really happening. 10 Answers ...
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Multiple constructors in python? [duplicate]

... Now you can do: c = C(fd) # or: c = C.fromfilename('a filename') Notice all those classmethods still go through the same __init__, but using classmethods can be much more convenient than having to remember what combinations of keyword arguments to __init__ work. isinstance is best avoided becaus...