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How to override the copy/deepcopy operations for a Python object?
I understand the difference between copy vs. deepcopy in the copy module. I've used copy.copy and copy.deepcopy before successfully, but this is the first time I've actually gone about overloading the __copy__ and __deepcopy__ methods. I've already Googled around and looked through the ...
How do I add a ToolTip to a control?
I have some controls that I would like to display a ToolTip for when the mouse is hovering over it. How can I do this? I would like to know how to do this properly in code, but also in the designer (There is a ToolTip component in the toolbox, but I don't quite.. get it).
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How to initialize a two-dimensional array in Python?
I'm beginning python and I'm trying to use a two-dimensional list, that I initially fill up with the same variable in every place. I came up with this:
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How do you track record relations in NoSQL?
I am trying to figure out the equivalent of foreign keys and indexes in NoSQL KVP or Document databases. Since there are no pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal we...
What is the equivalent of the C# 'var' keyword in Java?
One use of the var keyword in C# is implicit type declaration. What is the Java equivalent syntax for var ?
15 Answers
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Best practices/guidance for maintaining assembly version numbers
I'm looking for pointers, suggestions, and even dictation on how to manage the three different assembly version numbers for a .NET assembly. The Product version is the simplest, as this seems would normally be dictated by business. Then, the file version seems to be for versioning between deploym...
Java Replacing multiple different substring in a string at once (or in the most efficient way)
I need to replace many different sub-string in a string in the most efficient way.
is there another way other then the brute force way of replacing each field using string.replace ?
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Java - escape string to prevent SQL injection
I'm trying to put some anti sql injection in place in java and am finding it very difficult to work with the the "replaceAll" string function. Ultimately I need a function that will convert any existing \ to \\ , any " to \" , any ' to \' , and any \n to \\n so that when the string is e...
Checking images for similarity with OpenCV
Does OpenCV support the comparison of two images, returning some value (maybe a percentage) that indicates how similar these images are? E.g. 100% would be returned if the same image was passed twice, 0% would be returned if the images were totally different.
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Best practices for API versioning? [closed]
Are there any known how-tos or best practices for web service REST API versioning?
7 Answers
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