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Python dictionary from an object's fields
...a dictionary from an arbitrary object, it's sufficient to use __dict__. Usually, you'll declare your methods at class level and your attributes at instance level, so __dict__ should be fine. For example:
>>> class A(object):
... def __init__(self):
... self.b = 1
... self.c = 2
....
How do I list all files of a directory?
How can I list all files of a directory in Python and add them to a list ?
21 Answers
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Limit results in jQuery UI Autocomplete
...eter and then call slice on the filtered array.
Here's a working example: http://jsfiddle.net/andrewwhitaker/vqwBP/
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Python “raise from” usage
... the failure is the result of a IOError because a file failed to open or a HTTPError because a URL failed to work then that is context you want to include explicitly, so the developer using the API can debug why this is. At that moment you use raise DatabaseError from original_exception.
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How to create module-wide variables in Python? [duplicate]
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Here is what is going on.
First, the only global variables Python really has are module-scoped variables. You cannot make a variable that is truly global; all you can do is make a variable in a particular scope. (If you make a variable inside the Python interpreter, and then import other mo...
How do I mock an open used in a with statement (using the Mock framework in Python)?
...ython protocol methods (magic methods), particularly using the MagicMock:
http://www.voidspace.org.uk/python/mock/magicmock.html
An example of mocking open as a context manager (from the examples page in the mock documentation):
>>> open_name = '%s.open' % __name__
>>> with patc...
Collection that allows only unique items in .NET?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Determine what attributes were changed in Rails after_save callback?
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model.saved_changes
Rails < 5.1
model.previous_changes
Also see: http://api.rubyonrails.org/classes/ActiveModel/Dirty.html#method-i-previous_changes
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MySQL vs MongoDB 1000 reads
...very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'.
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Can a decorator of an instance method access the class?
I have something roughly like the following. Basically I need to access the class of an instance method from a decorator used upon the instance method in its definition.
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