Find A Value In “Look up” List That Are Similar But Not Equal Without Nested For Loop?

In this post, we will Find A Value In the “Look up” List That Is Similar But Not Equal Without Nested For Loop which we can perform using different methods, and one of those different methods a built-in function called filter() along with the combination of the lambda function and another method is is using the ‘difflib’ module of python where it provides different classes and methods to compare sequences which could include string to.



Look Up List

Here we will implement the same using both the discussed method where we will provide an appropriate example to understand it in a better way so let’s start with an example of the filter() function for implementing the same.

lookup_ list = ["Ram", "Shyam", "Rahim", "John", "tom"]

search_value = "Rahi"

result = list( filter( lambda x: search_value in x and abs( len( x)-len( search_value)) <= 1, lookup_ list))

print( result)

Here in above, given example look up list is given where we have stored five-string and which we want to search per now, and in another variable named search value has contained a string we want to search when we required which is somewhat similar to that of one of the string but not equal.

Here as we want the filter() function we defined here takes a built in function, lambda function, and applies it to each element of the ‘lambda function’. The lambda function checks if the search value we provided for a check is in the current element and if the absolute difference in length between the search value and the current element is at most 1. If these conditions are satisfied, the element is added to the result list.

And the result variable will be containing all the elements which are similar to that of the given search value here in the above case the answer will be Rahim.

Another way to implement that same is using difflib which we will implement here and get to know more about the function and get the result that we want using it also as we got using the filter() function.

So here is the code for the same.

import difflib

lookup_list = ["Ram", "Shyam", "Rahim", "John", "Tom"]

search_value = "rahm"

result = difflib. get_ close_ matches( search_ value, lookup_ list, n=1, cutoff=0.8)

print( result)

Here in this code also as we have checked for the search value which is it exists in it or not the same thing we performed here also and got the result of the original string if it exists otherwise no result.

Here also the result variable will be containing the value Rahim as it os the element as a string that completely matches with searched values.




To learn more about Find A Value In the “Look up” List That Are Similar But Not Equal Without Nested For Loop visit: Look up for a list by stack overflow in python

To learn more about python solutions to different python problems and tutorials for the concepts we need to know to work on python programming along with different ways to solve any generally asked problems: How To Pass-Variables From A Java & Python Client To A Linux/Ubuntu Server Which Is Running C?.

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