How to find union of two lists?

Question

I have two lists:
A=[ "python" , "c" , "Java" , "perl" ]
B=[ "php" , "JavaScript" , "python" , "SQL" , "Java" ]
how can I get union of both lists?

Answer 1

https://code.sololearn.com/co4pY865ROtP/?ref=app

Answer 2

thanks Jan Markus and Mohit the coder (M.S.D) for this help.

Answer 3

Jan Markus yeah I read it wrong check now I updated my code for numbers

Answer 4

Also if you don’t want to turn the lists into sets, you can do:

inter = [s for s in A if s in B]
A_ = [s for s in A if s not in B]
B_ = [s for s in B if s not in A]
U = inter + A_ + B_

Answer 5

Ok
newlist = list(set(list1) | set(list2))

i think this will work

Answer 6

AISHWARYA KASTHALA

ya it will be fine. 😊
But I find it somehow useless to convert lists into sets before taking union as u have done.
print ("newlist :", list1 l list2) will simply do the job.

Answer 7

can u answer this:
how to write a menu based program to insert,sort and reverse a list of items

Answer 8

You can create a function

def union(list1,list2):
newlist = list1+ list2
return newlist

list1 = ['python','c','java','perl']
list2 = ['php','javascript','python','sql','java,]

print(union(list1,list2))

Answer 9

AISHWARYA KASTHALA

but in your output 'java' and 'python' will repeat ... which is not allowed when we r taking union of two lists.

Answer 10

AISHWARYA KASTHALA

I am also a beginner though .. not having enough knowledge of sorting, inserting stuffs.
I suggest u to post it in your wall .. some expert will surely answer it.

Answer 11

I like Python