extractWithoutOrder

• Select the best match in a list or dictionary of choices.
• Find best matches in a list or dictionary of choices, return a generator of tuples containing the match and its score.
• If a dictionary is used, also returns the key for each match.

extract

• Select the best match in a list or dictionary of choices.
• Find best matches in a list or dictionary of choices, return a list of tuples containing the match and its score.
• If a dictionary is used, also returns the key for each match

extractBests

• Get a list of the best matches to a collection of choices.
• Convenience function for getting the choices with best scores

extractOne

• 参数：(query, choices, processor=default_processor, scorer=default_scorer, score_cutoff=0):

• Find the single best match above a score in a list of choices.

• This is a convenience method which returns the single best choice.

• See extract() for the full arguments list.

• query: A string to match against

• choices: A list or dictionary of choices, suitable for use with extract().

• processor: Optional function for transforming choices before matching.See extract().

• scorer: Scoring function for extract().

• score_cutoff: Optional argument for score threshold. If the best match is found, but it is not greater than this number, then return None anyway ("not a good enough match"). Defaults to 0.

dedupe

• This convenience function takes a list of strings containing duplicates and uses fuzzy matching to identify and remove duplicates.
• Specifically, it uses the process.extract to identify duplicates that score greater than a user defined threshold.
• Then, it looks for the longest item in the duplicate list since we assume this item contains the most entity information and returns that.
• It breaks string length ties on an alphabetical sort.