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How to copy a dictionary and only edit the copy
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Python never implicitly copies objects. When you set dict2 = dict1, you are making them refer to the same exact dict object, so when you mutate it, all references to it keep referring to the object in its current state.
If you want to copy the dict (which is rare), you have to do so expli...
C++ equivalent of java's instanceof
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edited Apr 26 '15 at 8:01
fredoverflow
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Getting the array length of a 2D array in Java
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Codeigniter - no input file specified
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291
Just add the ? sign after index.php in the .htaccess file :
RewriteEngine on
RewriteBase /
Rewr...
Unpacking, extended unpacking and nested extended unpacking
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115
My apologies for the length of this post, but I decided to opt for completeness.
Once you kno...
python numpy machine epsilon
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193
An easier way to get the machine epsilon for a given float type is to use np.finfo():
print(n...