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ValueError: numpy.dtype has the wrong size, try recompiling
...nstalled pandas and statsmodels package on my python 2.7
When I tried "import pandas as pd", this error message comes out.
Can anyone help? Thanks!!!
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How do Python functions handle the types of the parameters that you pass in?
Unless I'm mistaken, creating a function in Python works like this:
13 Answers
13
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Regular expression to allow spaces between words
...hat prevents symbols and only allows letters and numbers. The regex below works great, but it doesn't allow for spaces between words.
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AngularJS ngClass conditional
Is there any way to make an expression for something like ng-class to be a conditional?
11 Answers
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in a “using” block is a SqlConnection closed on return or exception?
...ither way, when the using block is exited (either by successful completion or by error) it is closed.
Although I think it would be better to organize like this because it's a lot easier to see what is going to happen, even for the new maintenance programmer who will support it later:
using (SqlCon...
clearing a char array c
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They key word in the answer is 'effectively'. Only the first element is begin set to 0 and the rest still have undefined values but if you are treating the array as a null terminated string and the first element is null, then the strin...
Why is std::map implemented as a red-black tree?
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Probably the two most common self balancing tree algorithms are Red-Black trees and AVL trees. To balance the tree after an insertion/update both algorithms use the notion of rotations where the nodes of the tree are rotated to perform the re-balancing.
While in both algorit...
How can I make the tabs work normally on Xcode 4?
...code finally added tabs but the problem is that they behave very strange. For example they will keep a tab open only if it was opened to a new tab.
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How to articulate the difference between asynchronous and parallel programming?
Many platforms promote asynchrony and parallelism as means for improving responsiveness. I understand the difference generally, but often find it difficult to articulate in my own mind, as well as for others.
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$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'
...request method (surprise).
$_POST contains any post data.
It's possible for a POST request to contain no POST data.
I check the request method — I actually never thought about testing the $_POST array. I check the required post fields, though. So an empty post request would give the user a lot ...