get_close_matches() in Python
get_close_matches()
As the name suggests this tool returns a list of closed
matched strings that satisfy the cutoff. The get_close_matches() method takes in four parameters of
which for finding the matches of which two are optional. Following are the
parameters that it accepts.
- Word: This is the single input string for which the closest matches are found.
- Possibilities:This is the list of pattern strings with which the input string is matched
- n: This is an optional parameter. This specifies the maximum number of close matches required for the input string. The default value for this parameter is 3.
- Cutoff: This is an optional parameter. This determines similarity between two words need to be in order to be returned as output. Possibilities that don’t score at least that similar to word are ignored. This argument is in the range of [0,1] and its default value is 0.6.
Thus the Syntax of get_close_matches() is:
get_close_matches(word,possibilities,n,cutoff)
Lets take an Example
CODE
import difflib
from difflib import get_close_matches
possibilities=['pythonsecrets', 'cpp', 'c', 'python','linux']
match = get_close_matches('cppsecrets',possibilities,n=4,cutoff=0.2)
print("Best matches:", match)
OUTPUT
In the above code possibilities is the pattern of of strings that is go
be matched with the word that is the input string "cppsecrets".The cutoff parameter is taken as 0.2 whereas the maximum number of close matches to be returned is taken as n=4.
Thus the close matches are returned in "Best matches" list.
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