Track/Record 个实例的方法使用 Python

Question

我正在开发一个可以帮助我学习英语的子程序。

我在 class System 中开发了一些方法，这些方法是 target_word 查找器的基于爬虫的 example/semantic。

然后我通过class User生成了一个用户，它生成了一个实例并继承了class System中的所有方法。

然后我想做的是，每当用户使用继承到 class User 的方法时，它会跟踪使用该方法的单词并将该信息记入 list = [] 中作为 sheudo数据库

class System:
    def wik_sem(self, target_word):
        print("start searching for the target_word {}\n".format(target_word))
        driver.get("https://en.wiktionary.org/wiki/" + target_word) #open the page of chronological page
        elem_info =[]
        for i in range(0, 20): #20 is the assumed maximum number of li[]
            try:
                element = '//*[@id="mw-content-text"]/div/ol[1]/li['+str(i)+"]"
                elem_info.append(driver.find_elements_by_xpath(element))
            except:
                break     
        reference_wik = []
        for i in range(0, len(elem_info)):
            if elem_info[i] == []:
                pass
            else:
                reference_wik.append((elem_info[i][0].text).split("\n")[0].split())
        #simple_parser


        # remove 'qutations','▼'
        for i in range(0,len(reference_wik)):    
            if '▼' in reference_wik[i]:
                del reference_wik[i][(len(reference_wik[i])-1)] #use del twice to delete both of '▼' and 'quotations'
                del reference_wik[i][(len(reference_wik[i])-1)] #use del to remove an element in list with index
        #remove the first parenthesized element, e.g. (countable) 'the thing which can be counted' ...
        for i in range(0,len(reference_wik)):    
            if '(' in list(reference_wik[i][0]):
                del reference_wik[i][0] #use del to remove an element in list with index
        #remove '.' at the end of each definition
        for i in range(0,len(reference_wik)): 
            if '.' in list(reference_wik[i][-1]):
                reference_wik[i][-1] = reference_wik[i][-1].replace(".", "")
        print("Definition of {} from wiktionary.org".format(target_word))
        for i in range(len(elem_info)):
            try:
                print(elem_info[i][0].text)
            except:
                pass

        return reference_wik

    def wis(self, target_word):
        driver.get("https://wordsinasentence.com/" + target_word+ "-in-a-sentence/") #open the page of chronological page
        sentence_numb = 20
        for i in range(1, sentence_numb): 
            try:
                elem_info = driver.find_element_by_xpath('//*[@id="content"]/p[{}]'.format(i))
                if 'WATCH' in elem_info.text.split():
                    break
                print(elem_info.text+"\n")
            except:
                pass

    def finder(self, target_word):
        reference_wik = wik_sem(target_word)
        print('\n\n')
        wis(target_word)
        return reference_wik

    def ety(self, target_word):
        print("start searching for the etymology of the target_word {}\n".format(target_word))
        driver.get("https://en.wiktionary.org/wiki/" + target_word)
        elem_info = driver.find_element_by_xpath('//*[@id="mw-content-text"]/div/p[3]')
        return elem_info.text

class User(System):
    def __init__(self, id_ = None):
        super().__init__()
        id_ = uuid4()
        self.id = id_
        self.hist = []

yoon = User() #class instantiation
yoon.finder('eschew')

然后 'eschew' 附加到 yoon.hist_list -> 我该怎么做？

Answer 1

看起来您想要的是将属性 hist 添加到父项 class System 而不是子项 User 然后附加 reference_wik 到方法 finder 中的列表 self.hist 而不是返回它：

class System():

    def __init__(self):
        self.hist = []

    #def wik_sem, wis ...

    def finder(self,target_word):
        reference_wik = wik_sem(target_word)
        print('\n\n')
        wis(target_word)
        self.hist.append(reference_wik)


    #rest of System def...

那么User可以定义为

class User(System):
   def __init__(self):
   super().__init__()
   id_ = uuid4()
   self.id = id_

然后

yoon = User()
yoon.finder('eschew')
print(yoon.hist)

产量：

#...output from print calls within finder...
['eschew']

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