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Filter dict to contain only certain keys?
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706
Constructing a new dict:
dict_you_want = { your_key: old_dict[your_key] for your_key in your_...
Programmatically generate video or animated GIF in Python?
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edited Jul 21 '16 at 4:03
Matt Bierner
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Add column with number of days between dates in DataFrame pandas
...'] - df['B']
In [14]: df
Out[14]:
A B C
one 2014-01-01 2014-02-28 -58 days
two 2014-02-03 2014-03-01 -26 days
Note: ensure you're using a new of pandas (e.g. 0.13.1), this may not work in older versions.
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Get event listeners attached to node using addEventListener
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140
Chrome DevTools, Safari Inspector and Firebug support getEventListeners(node).
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How to loop backwards in python? [duplicate]
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302
range() and xrange() take a third parameter that specifies a step. So you can do the following....
Tomcat: How to find out running tomcat version
... : Apache Tomcat/5.5.25
Servlet Specification Version : 2.4
JSP version: 2.0
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Weighted random numbers
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1) calculate the sum of all the weights
2) pick a random number that is 0 or greater and is less than the sum of the weights
3) go through the items one at a time, subtracting their weight from your random number, until you get the item where the random number is less than that item's weight
Ps...
Multidimensional Array [][] vs [,] [duplicate]
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501
One is an array of arrays, and one is a 2d array. The former can be jagged, the latter is unif...
Test if something is not undefined in JavaScript
I'm checking if(response[0].title !== undefined) , but I get the error:
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