将数据从 txt 文件传输到数组（列表索引超出范围）

Question

I am have issues witch transfering data from my text file into my array. As when i try to put data from the text file into the array it comes up with a list index out of range error. I just need a simple way of transfering a username and password into 2 different arrays.

username = []
password = []

lr = open("login.txt","r")
loginr = "temp"
  while loginr!="":
    loginr = lr.readline()
    field = loginr.split(",")
    username.append(field[0])
    password.append(field[1])
print(username+password)
lr.close()

The text file is layed out as

simple,123,
legit,scary,
smite,Oxygen31,

Answer 1

You need to make sure that login.txt file has all the lines with username,password, . Other than that, I would recommend using with open() instead of open() and close() and then you can loop through the lines of the file object or use list comprehension to extract usernames and passwords. For example:

# loop approach
with open('login.txt', 'r') as f:
    username = []
    password = []    
    for line in f:
        line = line.split(',')
        username.append(line[0])
        password.append(line[1])

# list comprehension approach
with open('login.txt', 'r') as f:
    data = [line.split(',') for line in f]
    username = [x[0] for x in data]
    password = [x[1] for x in data]