Find the similarity metric between two strings
How do I get the probability of a string being similar to another string in Python?
I want to get a decimal value like 0.9 (meaning 90%) etc. Preferably with standard Python and library.
similar("Apple","Appel") #would have a high prob. similar("Apple","Mango") #would have a lower prob.
There is a built in.
from difflib import SequenceMatcher def similar(a, b): return SequenceMatcher(None, a, b).ratio()
>>> similar("Apple","Appel") 0.8 >>> similar("Apple","Mango") 0.0