模块“self”在类格式中没有属性“file”错误

Question

我正在构建一个python代码，以使用pandas验证给定CSV文件中的电子邮件地址和电话号码，并且我想编写一个单独的CSV文件，其中只包含验证过的值。我对python完全陌生，我已经为该功能编写了如下代码：

from email_validator import validate_email, EmailNotValidError
import pandas as pd
import re

file = r'sample.csv'
filtered = r'filtered.csv'
valid = r'Valid.csv'
df=pd.read_csv(file)

def eVali(dataFrame):
    try:
        validate_email(dataFrame)                 
        return True
    except EmailNotValidError:
        return False


def phoneValid(dataFrame):
    if re.search("\w{3}-\w{3}-\w{4}",dataFrame):
        return True
    else:
        return False

df["Email_validate"] = df['email'].apply(eVali)

df_fltrd = df[df['Email_validate']]
#del df_fltrd['Email_validate']
print(df_fltrd)

df_fltrd["Phone_validate"] =df_fltrd['phone'].apply(phoneValid)

df_valid = df_fltrd[df_fltrd["Phone_validate"]]
del df_valid["Phone_validate", "Email_validate"]
print(df_valid)

df_fltrd.to_csv(filtered)
df_valid.to_csv(valid)

这段代码运行良好，我可以根据需要创建一个带有验证值的新CSV。但是当我试图用正确的方法将代码组织为一个正确的类时，它给出了一个错误提示

Traceback (most recent call last):
  File "E:\myTasks\validator.py", line 7, in <module>
    class Validator:
  File "E:\myTasks\validator.py", line 47, in Validator
    validation(self.file)
AttributeError: module 'self' has no attribute 'file'

这是我创建的类

Validator.py

    import self as self
from email_validator import validate_email, EmailNotValidError
import pandas as pd
import re


class Validator:

    def __init__(self):
        self.file = r'sample.csv'
        self.outFile =r'filteredSample.csv'



    def emailValid(dataframe):
        try:
            validate_email(dataframe)
            return True
        except EmailNotValidError:
            return False

    def phoneValid(dataframe):
        if re.search("\w{3}-\w{3}-\w{4}", dataframe):
            return True
        else:
            return False

    def validation(self):
        df = pd.read_csv(self.file)
        df = df.copy();
        df["Email_validate"] = df['email'].apply(Validator.emailValid)

        df_filtered = df[df['Email_validate']]
        print(df_filtered)

        df_filtered["Phone_validate"] = df_filtered['phone'].apply(Validator.phoneValid)

        df_valid = df_filtered[df_filtered["Phone_validate"]]
        del df_valid["Email_validate"]
        del df_valid["Phone_validate"]
        print(df_valid)

        df_valid.to_csv(self.outFile)

    validation(self)

谁能帮我一下吗。非常感谢。提前谢谢

Answer 1

您不导入self。 self是代码执行时所处的实例

你的问题是你还不了解课程。您试图在类中调用python不喜欢的类方法

我建议你看看https://docs.python.org/3/tutorial/classes.html和/或https://www.w3schools.com/python/python_classes.asp

要将最后一行推到末尾并添加

def main():
    i = Validator()
    i.validation()

if __name__ == "__main__":
    main()

Answer 2

嗯，您不能从类本身调用实例方法

validation(self) 

该位应该在类之外，例如，可以在实例化验证器对象后从主函数调用它

my_validator = Validator()
my_validator.validation()