Python: Find the string similarity between two given strings

Python String: Exercise-92 with Solution

Write a Python program to find the string similarity between two given strings.

From Wikipedia:
In computer science, approximate string matching (often colloquially referred to as fuzzy string searching) is the technique of finding strings that match a pattern approximately (rather than exactly).

Sample Solution:-

Python Code:

import difflib
def string_similarity(str1, str2):
    result =  difflib.SequenceMatcher(a=str1.lower(), b=str2.lower())
    return result.ratio()
str1 = 'Python Exercises'
str2 = 'Python Exercises'
print("Original string:")
print(str1)
print(str2)
print("Similarity between two said strings:")
print(string_similarity(str1,str2))
str1 = 'Python Exercises'
str2 = 'Python Exercise'
print("\nOriginal string:")
print(str1)
print(str2)
print("Similarity between two said strings:")
print(string_similarity(str1,str2))
str1 = 'Python Exercises'
str2 = 'Python Ex.'
print("\nOriginal string:")
print(str1)
print(str2)
print("Similarity between two said strings:")
print(string_similarity(str1,str2))
str1 = 'Python Exercises'
str2 = 'Python'
print("\nOriginal string:")
print(str1)
print(str2)
print("Similarity between two said strings:")
print(string_similarity(str1,str2))
str1 = 'Python Exercises'
str1 = 'Java Exercises'
print("\nOriginal string:")
print(str1)
print(str2)
print("Similarity between two said strings:")
print(string_similarity(str1,str2))

Sample Output:

Original string:
Python Exercises
Python Exercises
Similarity between two said strings:
1.0

Original string:
Python Exercises
Python Exercise
Similarity between two said strings:
0.967741935483871

Original string:
Python Exercises
Python Ex.
Similarity between two said strings:
0.6923076923076923

Original string:
Python Exercises
Python
Similarity between two said strings:
0.5454545454545454

Original string:
Java Exercises
Python
Similarity between two said strings:
0.0

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