How to Write a Python program to insert a new item before the second element in an existing array

Question

all I am learning python from some days back, and please help me to How to Write a Python program to insert a new item before the second element in an existing array

Answer 1

The python list data structure has a insert method associated with it..

The insert method takes two arguments position, value-to-insert.

So for your case it will be something like this.

In [1]: l1 =  ['a','b','c','d']

In [2]: l1.insert(1,'x')

In [3]: l1
Out[3]: ['a', 'x', 'b', 'c', 'd']

In [4]:

We are inserting at index 1, because list index starts with 0.