TermFinder.py

class TermFinder:
    @staticmethod
    def find_terms(to_search, terms):
        resultDict = {}
        for term in terms:
            resultDict[term] = TermFinder._find_term(to_search, term)
        return resultDict

    @staticmethod
    def _find_term(to_search, term):
        initial = 0
        result = []
        while True:
            initial = to_search.lower().find(term.lower(), initial)
            if initial == -1:
                break
            result.append(initial)
            initial += len(term)
        return result

def execute(*args):
    print args

if __name__ == "__main__":
    toSearch = """Hi, C#, c#, sql, SQL, Database, C# etc
    Wait, there's more, C#, SQL, C# and maybe some Python too.
    """
    result = TermFinder.find_terms(toSearch, ['C#', 'SQL', 'Python'])
    for key in result.iterkeys():
        arr = result.get(key)
        print 'term: {0}'.format(key)
        print 'number of occurances: {0}'.format(len(arr))
        for startIndex in arr:
            print 'start: {0}, end: {1}'.format(startIndex, startIndex + len(key))