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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
... with x[numpy.ix_([0,2],[1,3])]. This can save you from having to enter in all of those extra brackets.
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How to document class attributes in Python? [closed]
...y has a specific meaning in python. What you're talking about is what we call class attributes. Since they are always acted upon through their class, I find that it makes sense to document them within the class' doc string. Something like this:
class Albatross(object):
"""A bird with a fligh...
What is the 'new' keyword in JavaScript?
...n's external, accessible, prototype object (every function object automatically has a prototype property).
It makes the this variable point to the newly created object.
It executes the constructor function, using the newly created object whenever this is mentioned.
It returns the newly created objec...
What does f+++++++++ mean in rsync logs?
...to determine what changed. To decode each bit's meaning, use the following table.
Explanation of each bit position and value in rsync's output:
YXcstpoguax path/to/file
|||||||||||
||||||||||╰- x: The extended attribute information changed
|||||||||╰-- a: The ACL information changed
|||||||...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
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Please check my answer here. Basically I just had to :
@Override
protected void onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}
Don't make the call to super() on the saveInstanceState method. This was messing t...
How to see the changes between two commits without commits in-between?
...question, so I have no idea why it has so many upvotes. The OP is specifically asking how NOT to get the first command you give, and the second has nothing to do with anything.
– psusi
Sep 4 '15 at 17:51
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AJAX Mailchimp signup form integration
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You don't need an API key, all you have to do is plop the standard mailchimp generated form into your code ( customize the look as needed ) and in the forms "action" attribute change post?u= to post-json?u= and then at the end of the forms action appen...
How do I space out the child elements of a StackPanel?
...fine the type (e.g. TextBox)? If I try this using FrameworkElement so that all children are spaced, it has no effect.
– Jack Ukleja
Jan 28 '14 at 18:48
5
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How to encode a URL in Swift [duplicate]
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Swift 4.2
var urlString = originalString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
Swift 3.0
var address = "American Tourister, Abids Road, Bogulkunta, Hyderabad, Andhra Pradesh, India"
let escapedAddress = address.addingPercentEncoding(withAllowedCharacters: Characte...
Hash collision in git
...wice. But "surprisingly few" is a very relative term here.
Wikipedia has a table on the probability of Birthday Paradox collisions. There is no entry for a 40 character hash. But an interpolation of the entries for 32 and 48 characters lands us in the range of 5*1022 git commits for a 0.1% probabil...