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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _get_team_abbreviation(self, team):
 """ Retrieve team's abbreviation. The team's abbreviation is embedded within the 'school_name' tag and requires special parsing as it is located in the middle of a URI. The abbreviation is returned for the requested school. Parameters team : PyQuery object A PyQuery object representing a single row in a table on the conference page. Returns ------- string Returns a string of the team's abbreviation, such as 'PURDUE'. """

        name_tag = team('th[data-stat="school_name"] a')
        team_abbreviation = re.sub(r'.*/cfb/schools/', '', str(name_tag))
        team_abbreviation = re.sub(r'/.*', '', team_abbreviation)
        return team_abbreviation