How to fix ValueError: not enough values to unpack (expected 2, got 1)-CodePudding

I am working with a text file where I'm making a dict and zip function for a login page. But for some reasons, it gives me the ValueError from time to time. This usually happens when I manually edit or remove data from the text file and will be fixed if I create another text file but I can't keep doing that. So please help me.

The Text File

shanm, @Yolz3345
Jiaern, @Valorant
Steve, ImaG@nius

The code

#FOR LOGIN DETAILS
list_un = []
list_ps = []
members_list = open("det.txt", "r")
for info in members_list:
    a,b = info.split(", ")
    b = b.strip()
    list_un.append(a)
    list_ps.append(b)                                   
data = dict(zip(list_un, list_ps))

The Error I get from time to time

    a,b = info.split(", ")
ValueError: not enough values to unpack (expected 2, got 1)

CodePudding user response：

As mentioned in the comment, this indicates a line without a comma. Most likely a return character at the end of the last line, meaning you have one empty line at the end.

CodePudding user response：

Most likely it is the last line in the file which is empty, i.e. \n.

How can you debug it? add a try-catch and print info

How can you fix it? either delete the last line in the file or try-catch and ignore.

CodePudding user response：

You can use the .readlines() function to get list containing all lines except the last line if its empty.

New Code:

list_un = []
list_ps = []
members_list = open("det.txt", "r")
for info in members_list.readlines():
    a,b = info.split(", ")
    b = b.strip()
    list_un.append(a)
    list_ps.append(b)                                   
data = dict(zip(list_un, list_ps))