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What is the difference between dict.items() and dict.iteritems() in Python2?
...d is also gone, since items() in Python 3 works like viewitems() in Python 2.7.
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Reordering arrays
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The syntax of Array.splice is:
yourArray.splice(index, howmany, element1, /*.....,*/ elementX...
How do you get centered content using Twitter Bootstrap?
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23 Answers
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How to redirect and append both stdout and stderr to a file with Bash?
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2052
cmd >>file.txt 2>&1
Bash executes the redirects from left to right as follows:...
Can someone give an example of cosine similarity, in a very simple, graphical way?
...unt the number of times each of these words appears in each text:
me 2 2
Jane 0 1
Julie 1 1
Linda 1 0
likes 0 1
loves 2 1
more 1 1
than 1 1
We are not interested in the words themselves though. We are interested only in
those two vertical vectors of counts. F...
Return first N key:value pairs from dict
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edited Aug 21 '19 at 12:43
ofir_aghai
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Best way to merge two maps and sum the values of same key?
...> import Scalaz._
import Scalaz._
scala> val map1 = Map(1 -> 9 , 2 -> 20)
map1: scala.collection.immutable.Map[Int,Int] = Map(1 -> 9, 2 -> 20)
scala> val map2 = Map(1 -> 100, 3 -> 300)
map2: scala.collection.immutable.Map[Int,Int] = Map(1 -> 100, 3 -> 300)
scala&g...
combinations between two lists?
...e looking for - see the other answers.
Suppose len(list1) >= len(list2). Then what you appear to want is to take all permutations of length len(list2) from list1 and match them with items from list2. In python:
import itertools
list1=['a','b','c']
list2=[1,2]
[list(zip(x,list2)) for x in ite...