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Questions - nested-lists

How to append nested lists with same string together?

I have a nested list that looks like the following: list = [['bob', '12'], ['jim', '14'], ['bob', '13']] I am trying to get the following output: list = [['bob', '12', '13'], ['jim', '14']] Is there...
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A5omic

python

python-3.x

list

nested-lists

Votes: 0

Answers: 2

Latest Answer

One option is to use a temporary dictionary as you combine lists: tmp = {} for name, num in lst: if name in tmp: tmp[name].append(num) else: tmp[name] = [name, num] out = list(...
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user7864386

Slice in 2 dimensional array

I have 2 dimensional array I want to get every first element in 2 dimensional list. But when I try to using slice I have strange behavior. arr = [[10,2],[11,3],[12,4],[13,4],[14,5]] print(arr[:][1]) ...
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Vladimir Yanakiev

python

list

slice

nested-lists

Votes: 0

Answers: 3

Latest Answer

arr[:] is as good as object arr itself, because you are calling for a slice to include all elements.Check what this outputs arr = [[10,2],[11,3],[12,4],[13,4],[14,5]] print(arr[:]) It outputs the who...
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logi

Filtering lists and nested lists using streams

I have to filter a list, based on the value of an attribute. I also have to filter a nested list, based on one of its attributes, and likewise for another nested list. I wondered how this might be pos...
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CurvedHalo

java

java-stream

nested-lists

predicate

Votes: 0

Answers: 5

Latest Answer

You can do this with the stream filter lambda expression, but the resultant cohesion will unfortunately not be great: listOfFoos.stream() .filter(foo -> (foo.getType().equalsIgnoreCase("...
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Ovidijus Parsiunas

Perform a compare and assign values between two nested-data structures in python using pure python

I currently have two datasets (database, assignment) which are nested list-dict and dict-list respectively. I would like to use a sort of vlookup function of a specific key in database, and if the key...
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helpmepls

python-3.x

nested-lists

Votes: 0

Answers: 1

Latest Answer

This script should work: database = [ {'name': 'ABC', 'position': 'executive'}, {'name': 'DEF', 'position': 'senior exe'}, {'name': 'GEH', 'position': 'contractor'}, ] assignment = { ...
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Dmytro Kolupaiev

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