# format: user, password
a_file = open("User_List_&_Passwords.txt", "r")

# read the file into into a list lines
lines = a_file.readlines()

# we don't need a_file anymore
a_file.close()

# init lists
Namelist = []
Passwordlist = []

# iterate through the lines list
for line in lines:

    # remove whitespace, if nothing is left it's a blank line
    # we skip those (this could be improved to also skip/error
    # on incomplete or invalid password lines)
    if line.strip() == "":
        continue

    # split at the ","
    as_list = line.split(",")

    # remove possible trailing/leading whitespace and add to list
    Namelist.append(as_list[0].strip())
    Passwordlist.append(as_list[1].strip())

# no changes from me in the code below...

count = 0
SearchName = input("Please enter user name:")
if SearchName not in Namelist:
    while SearchName not in Namelist and count != 3:
        print(SearchName, "is incorrect")
        SearchName = input("Please enter user name:")
        count = count + 1
else:
    print(SearchName, "Correct user name")
    print(Namelist.index(SearchName))

count1 = 0
SearchPassword = input("Please enter your password:")
if SearchPassword not in Passwordlist:
    while SearchPassword not in Passwordlist and count1 != 3:
        print(SearchPassword, "Password incorrect")
        SearchPassword = input("Please enter correct password:")
        count1 = count1 + 1
else:
    print(SearchPassword, "Correct password")