Python Intended Block error [duplicate]

Question

I am sorry but i have a problem that i dont understand...

def login_screen():
    print(30 * "-")
    print("   LOGIN")
    print(30 * "-")
    username = print("Please enter your username: ")
    password = print("Please enter your password: ")
        with open('logins.txt', 'r') as csvfile:
            loginreader = csv.reader(csvfile, delimiter=',', quotechar= None)
            for codes in loginreader:
                if len(codes) == L_LEN:
                    if codes[L_USERNAME] == username and codes[L_PASSWORD] == password and codes[L_ADMIN] == "Yes":
                        admin_console()
                    elif username == row[L_USERNAME] and password == row[PASSWORD] and row[L_ADMIN] == "No":
                        #Temp normal console here
                    else:
                        clearscreen()
                        error_head()
                        print("Unknown account")
                        input("Press [ENTER] To continue...")
                        login_screen()
                elif len(codes) != M_LEN:
                    next(csvfile, None)

So the problem is that it comes with the following error:

  File "G:\Python\DatabaseStandardRewrite\Login.py", line 49
else:
   ^

IndentationError: expected an indented block

But i dont get it! (Yes, all the other things are defined in the rest of the document!

Does anyone of you see my mistake?

Natan

then it's probably TAB/space mixup. Convert tabs to spaces and check the output. — Jean-François Fabre
– Jean-François Fabre ♦, Commented Mar 2, 2017 at 15:42

Daniel Roseman · Accepted Answer · 2017-03-02 15:42:04Z

2

Python does not permit blocks to be empty; you need at least one statement, and a comment does not count. So in the elif block before your else, you should put pass.

            elif username == row[L_USERNAME] and password == row[PASSWORD] and row[L_ADMIN] == "No":
                #Temp normal console here
                pass
            else:
                clearscreen()

answered Mar 2, 2017 at 15:42

Daniel Roseman

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2 Comments

user7141836 Over a year ago

If this is the correct answer, please accept it as the correct answer.

berna1111 Over a year ago

In this case, because the conditional statement is inside a cycle, you can also use continue to make the elif block not empty, IF you want to skip directly to the next iteration of your cycle. In this example it ends up being equivalent as nothing else is done after the pass (other conditional branches don't apply).

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