構文エラーリストの理解

Question

これに構文エラーのある質問があることは知っていますが、ここで問題を把握することはできません。なぜ私に以下の構文エラーが出るのですか？

更新：55 モジュール= namedtuple（ 'モジュール'、 'コードのタイトルECTS'）

BB1_MODULES = { 
       'BB103': Module('BB103', 'Computer Systems', 5), 
       'BB111': Module('BB111', 'Web Design', 5), 
       'BB112': Module('BB112', 'Digital Innovation', 5), 
       'BB123': Module('BB123', 'Computer Programming I', 10), 
       'BB124': Module('BB124', 'Computer Programming II', 10), 
       'BB343': Module('BB343', 'Networks and Internet', 5), 
       'BB434': Module('BB434', 'Operating Systems', 5), 
       'BB543': Module('BB543', 'Problem Solving', 5), 
       'BB432': Module('BB432', 'IT Mathematics', 10)}#ects 

class Student(object): 

    def __init__(self, idnum, surname, firstname, mods=CA1_MODULES): 
     self.__idnum = idnum 
     self.__surname = surname 
     self.__firstname = firstname 
     self.__mods = mods 
     self.__marks = {code: 0 for code in self.__mods.keys()} #returm a list of module codes #dict comprehension 
     # self.__total_credits 
     self.__total__credits = sum[mod.ects for mod in self.__mods.values()] 
    def __str__(self): 
     name = '{} : {} {}'.format(self.__idnum, 
            self.__firstname, 
            self.__surname) 
     uline = '-' * len(name) 
     results = '\n'.join([code + ' : ' + self.__mods[code].title + 
           ' : ' + str(self.__marks[code]) 
           for code in sorted(self.__mods.keys())]) 
     pm = 'Precision mark: {:.2f}'.format(self.precision_mark()) 
     if self.passed(): 
      outcome = 'Pass' 
     elif self.passed_by_compensation(): 
      outcome = 'Pass by compensation' 
     else: 
      outcome = 'Fail' 

     return '\n'.join([name, uline, results, pm, outcome]) 

    def add_mark(self, module, mark): 
     self.__marks[module]=mark 

    def precision_mark(): 
     [self.__marks[mod] * self.__mods[code].ects for code in self.__mods.keys()]/self.__total_credits 

    def passed(): 
     return min(self__marks.values()) >= 40 

    def passed_by_compensation(): 
     if self.precision_mark() <45: 
      return False 
     sum([self.__mods[code].ects for code in self.__mods.keys() if self.marks[code] < 40]) > self.__total_credits/6: 
      return False 
     return min(self.marks.__values()) >= 35 

self.__total__credits = sum[mod.ects for mod in self.__mods.values()] 
            ^
#SyntaxError: invalid syntax 
#self.__total__credits = sum[mod.ects for mod in self.__mods.values()] 

Answer 1

sumが関数で今すぐ行で構文エラーを取得すると、あなたは、このように括弧でそれを使用する必要があります。

self.__total__credits = sum([mod.ects for mod in self.__mods.values()])