从方法中返回一个值，并将其重新用于类中的下一个方法-解网

问：

我正在尝试理解类和方法。

假设我们有一个自定义类，它有 3 种方法，允许我：Nlkt_custom

读取文本文件
标记文本
返回单词出现次数

返回并稍后定义它们，以便将其输出用于下一个方法是否是一种好的做法？如果不是，构建这些方法的首选方法是什么？ficwordssorted_freqs

class Nltk_custom:
    _defaultEncoding = "utf-8"
    _defaultLang = "english"
    
    def __init__(self, filename, encoding=_defaultEncoding, lang=_defaultLang):
        self.filename = filename
        self.encoding = encoding
        self.lang = lang

    def custom_read(self):
        try:
            with open(self.filename, mode='r', encoding=self.encoding) as f:
                fic = f.read()
                return fic
        except FileNotFoundError:
            print(f"File '{self.filename}' not found.")
        return None

    def custom_tokenisation(self, fic):
        words = nltk.tokenize.word_tokenize(fic.lower(), self.lang)
        return words
    
    def sort_frequences(self, dictionnaire):
        # I am using it again in other methods, so I decided to create a function apart
        return dict(sorted(dictionnaire.items(), key=lambda item: item[1], reverse=True))
    
    def custom_frq(self, words):
        freqs = FreqDist(words)
        sorted_freqs = self.sort_frequences(freqs)
        return sorted_freqs


fic_inst = Nltk_custom(filename="arandomfile.txt")
fic = fic_inst.custom_read()
words = fic_inst.custom_tokenisation(fic)

#words = Nltk_custom.custom_tokenisation(fic)

sorted_freqs = fic_inst.custom_frq(words)

蟒蛇 NLTK

class Nltk_custom:
    ...  # other methods elided

    def custom_tokenisation(self, fic):
        words = nltk.tokenize.word_tokenize(fic.lower(), self.lang)
        return words

    def custom_frq(self, words):
        freqs = FreqDist(words)
        sorted_freqs = dict( sorted(freqs.items(), key=lambda item: item[1], reverse=True))
        return sorted_freqs


fic_inst = Nltk_custom(filename="arandomfile.txt")
fic = fic_inst.custom_read()
words = fic_inst.custom_tokenisation(fic)
sorted_freqs = fic_inst.custom_frq(words)

请注意最后两个方法的 how 和 are 参数。ficwords

从方法中返回一个值，并将其重新用于类中的下一个方法

Return a value from a method and re-use it to the next method inside class

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