Question

我的代码：

def email_address_grab（email_list）：

""" This function takes in a list of emails and puts them into a sql database """


#import module
import sqlite3 as sql


#Setup sql
#create connection for sql
connection = sql.connect("emailList.db")

#create cursor
crsr = connection.cursor()

 #create sql table
cmd = """CREATE TABLE emails (
email_handle TEXT,
email_domain VARCHAR(20));"""
crsr.execute(cmd)


#iterate through email list
index = 0
for email in email_list:
    #split email with a delimiter of "@"
    email_list[index] = email.split('@')
    index += 1

#while loop to put all data into table
ct = 0
index = 0
while ct <= (len(email_list) - 1):
    for i in email_list:
        for j in email_list:
            email_address_1 = email_list[index]
            email_address_2 = email_list[index + 1]
            cmd = f"""INSERT INTO emails (email_handle, email_domain)
            VALUES ({email_address_1}, {email_address_2});"""
            crsr.execite(cmd)
            index += 1
    ct += 1


#get the contents of the table
crsr.execute("SELECT * FROM emails;")

#store contents in a variable
email_address_list = crsr.fetchall()

#save changes to sql table
connection.commit()

#close connection
connection.close()


#return print statement for data
return print(email_address_list)

我收到了IndexError：

文件“ c：/ Users / USER / Desktop /电子邮件grabber.py”，第82行，在 email_address_grab（[“ testemail123@gmail.com”]）

文件“ c：/Users/USER/Desktop/emailgraber.py”，第57行，在email_address_grab中 email_address_2 = email_list [索引+ 1]

IndexError：列表索引超出范围

我该如何解决？

Answer 1

您有2个循环在email_list上进行迭代。但是，您仅在代码中使用变量index，并且每次都将其递增。

因此，假设您的列表中有10封电子邮件。您的双循环将使您的代码执行100次，并且index的值将继续增长。在执行了11次循环之后，您将尝试获取email_list的第11个值，这会产生错误，因为列表中只有10个值。

如果您想创建每对变量，您可能想要使用i, j这样的变量

email_address_1 = email_list[i]
email_address_2 = email_list[j]

IndexError：索引超出范围Python错误

1 个答案: