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#!/usr/bin/python                                                                         # -*- coding: UTF-8 -*-                                                                   import redef NumberOfOccurencesOfWordInText(word,text):    def NumberOfOccurencesOfWordInText(word,text):    """Returns the nb. of occurences of whole word(s) (case insensitive) in a text"""    #Basic attempt, does not pass all the tests: you have to improve it.    # return text.lower().count(word.lower())    unformated = re.compile('\s+', flags=re.I|re.M|re.U)    text_unformated = unformated.sub(' ', text.lower())    lword = word.lower()    chaine_matcher = re.compile('(\W+'+lword+'\W+)|(\W+'+lword+'\Z)|(\A'+lword+'\W+)', flags=re.I|re.M|re.U)    occurences = chaine_matcher.findall(text_unformated)    return len(occurences)