I have a nested list named list1 of following:
list1 = [['Plane' , 'London' , 'Paris', '1'] , ['Helicopter', 'Budapest' , 'Rome', '2'] , ['Jet', 'Tokio', 'New York' , '3'] , ['Balloons' , 'Belgrade', 'Vienna', '2']]
I need to extract the following from list1 in python:
{ ('London', 'Paris'): '1',
('Budapest', 'Rome'): '2',
('Tokyo', 'New York'): '3',
('Belgrade', 'Vienna'): '2'}
How can I solve this with list comprehension?
CodePudding user response:
This works
# unpack each sub-list in a dict comprehension and manually construct the keys
{(i,j): v for _,i,j,v in list1}
{('London', 'Paris'): '1',
('Budapest', 'Rome'): '2',
('Tokio', 'New York'): '3',
('Belgrade', 'Vienna'): '2'}