PYTHON（PYQT）-CSV-按行读取

Question

I have user;password;fullname in the notepad by row.

My form should only accept user and password when I put it on the line widget but every time I run this, my form exits.

def login_button_clicked(self):
    import csv
    with open('user.txt', newline='') as f:
        reader = csv.reader(f, delimiter=';', quoting=csv.QUOTE_ALL)
        for row in reader:
            us, pa, fn = line.rstrip().split(';')

            if self.username_line.text() == us and self.password_line.text() == pa:
                QtWidgets.QMessageBox.information(self, "LOGIN", "LOGIN SUCCESSFUL!")
                self.isLogged.emit()
                self.close()
                return
            else:
                QtWidgets.QMessageBox.information(self, "LOGIN FAILED", "LOGIN FAILED!")

Answer 1

When you use csv.reader() it is not necessary to use the split() function, since internally it separates it. in the variable row you have the list of elements. So in your case the solution is as follows:

def login_button_clicked(self):
    import csv
    with open('user.txt', newline='') as f:
        reader = csv.reader(f, delimiter=';', quoting=csv.QUOTE_ALL)
        for row in reader:
            us, pa, fn = row
            # us, ps = row[:2]
            if self.username_line.text() == us and self.password_line.text() == pa:
                QtWidgets.QMessageBox.information(self, "LOGIN", "LOGIN SUCCESSFUL!")
                self.isLogged.emit()
                self.close()
                return
            else:
                QtWidgets.QMessageBox.information(self, "LOGIN FAILED", "LOGIN FAILED!")