Linear Search | Python | Finding a number from a list

Motive

        I am a guy who watches a lot of YouTube videos, there I saw a video that teaches a Linear search in python so I taught to try it myself and make it easier for you to understand. Let's see how it's done.

 

The Project

        First let's make a list of numbers and name the list as list. Then let's make a function called searchFor which takes one parameter called number.

list = [1,2,3,4,5,6] def searchfor(number):

  

Then:

def searchfor(number): index = 0 indexValue = list[index]

Here,we create two variables called index and set it to 0 and indexValue to the number at the index in the list(indexValue = list[index]).

After that:

def searchfor(number): index = 0 indexValue = list[index] while number != indexValue: index += 1 indexValue = list[index]

We run a while loop in which if number (parameter) is not equal to the indexValue, we add one to index and the get the value in that index and again check if number is equal to indexValue and continues till we find the number that we are searching for.

Then:

def searchfor(number): index = 0 indexValue = list[index] while number != indexValue: index += 1 indexValue = list[index] print(f'\'{number}\' is at index \'{index}\'.')

 

Now we print that the number that we searched for is at this particular index.

The full code:

list = [1,2,3,4,5,6] def searchfor(number): index = 0 indexValue = list[index] while number != indexValue: index += 1 indexValue = list[index] print(f'\'{number}\' is at index \'{index}\'.')

Now let's test the code:

list = [1,2,3,4,5,6] def searchfor(number): index = 0 indexValue = list[index] while number != indexValue: index += 1 indexValue = list[index] print(f'\'{number}\' is at index \'{index}\'.') searchFor(4)

So now we should get 3 as the index:

This works !!!

        If you have any doubts or errors in the program feel free to comment down below and I will respond as early as possible. And if I have made any mistake please correct me in the comment box below. Don't forget to follow us for such python related content.