Python Program for Linear Search

Sure, here is a simple Python program for linear search:

def linear_search(arr, x):
   for i in range(len(arr)):
      if arr[i] == x:
         return i
   return -1

arr = ['t','u','t','o','r','i','a','l']
x = 'a'
print("element found at index "+str(linear_search(arr,x)))

In this program, we define a function linear_search that takes an array and the element you're searching for as inputs. It goes through each element of the array one by one (this is the "linear" part of "linear search") and checks if it's equal to the element you're searching for. If it is, it returns the index of that element. If it goes through the whole array and doesn't find the element, it returns -1.

The array we're searching through is arr, and the element we're searching for is x. After we call the linear_search function with arr and x as inputs, we print the index at which the element is found.