Python PyQt : Authentication of User for Login

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[arjunvenkatesh]

At the place of print method if I use qmessagebox am getting unbound error, can you please let me know what error it is and how to solve that problem

[ВладимерПопов-цг]

Сan you help? how to do this in MYSQL

if(len(result.fetchall()) > 0):
Don't working

[tawandabanda]

thanks mate, at first i had an error but found out how to solve it
my code had a problem at:

result = connection.execute("SELECT * FROM USERS WHERE USERNAME = ? AND PASSWORD = ?", (username, password))
Error binding parameter 0: probably unsupported type



however the solution is

result = connection.execute("SELECT * FROM USERS WHERE USERNAME = ? AND PASSWORD = ?", (str(username), str(password)))