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In Python, I have two lists 

List1 = [1, 2]
List2 = [3, 4] 

How can I concatenate two lists in Python to get the below result!

List3 = [1, 2, 3, 4]

 


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You have two options to perform merge or concatenate for two lists in Python:

  1. Simply, you can use "+" operator.

     list3=list1+list2 
     #the result is list3=[1, 2, 3, 4]
    
  2. If you don't need to preserve the first list you can use "extend".

     list1.extend(list2)
    

Hope it helps!

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