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What's a correct and good way to implement __hash__()?
...be integers, and there aren't too many of them, I suppose you could potentially run slightly faster with some home-rolled hash, but it likely wouldn't be as well distributed. hash((self.attr_a, self.attr_b, self.attr_c)) is going to be surprisingly fast (and correct), as creation of small tuples is ...
In Python, how do I read the exif data for an image?
...e. Some images are generated without EXIF data. If it is empty programmatically, try opening the image file in a photo editing software to check if it actually has EXIF data.
– Gino Mempin
Sep 6 at 0:03
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Getting All Variables In Scope
Is there a way to get all variables that are currently in scope in javascript?
10 Answers
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How to remove non-alphanumeric characters?
I need to remove all characters from a string which aren't in a-z A-Z 0-9 set or are not spaces.
9 Answers
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What are the rules about using an underscore in a C++ identifier?
...FC background, you'll probably use m_foo . I've also seen myFoo occasionally.
5 Answers
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How to convert CFStringRef to NSString?
...n objects with +1 reference counts, meaning that they need to be released (all CF[Type]Create format functions do this).
The nice thing is that in Cocoa you can safely use autorelease or release to free them up.
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Remove Application Insight from application on Visual Studio 2013
...d only have to remove one extension and possibly one nuget package.
Uninstall the Application Insights Tools for Visual Studio extension and remove the Application Telemetry SDK for Services nuget package. The telemetry package is installed along with Application Insights but must be removed separa...
What does [:] mean?
...he type of population. If population is a list, this line will create a shallow copy of the list. For an object of type tuple or a str, it will do nothing (the line will do the same without [:]), and for a (say) NumPy array, it will create a new view to the same data.
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Python debugging tips [closed]
... same effect in the running code
ipdb is a version of pdb for IPython. It allows the use of pdb with all the IPython features including tab completion.
It is also possible to set pdb to automatically run on an uncaught exception.
Pydb was written to be an enhanced version of Pdb. Benefits?
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Is there a way to instantiate objects from a string holding their class name?
...initializing or assigning to it. Have a look at its documentation here. Finally, the use of a raw function pointer is also a bit oldish. Modern C++ code should be decoupled from specific functions / types. You may want to look into Boost.Function to look for a better way. It would look like this the...