PyQt5: clicked.connect not working with no errors
Question
Put simply my binding of signals to slots does not seem to be working, and I'm not getting any errors. Printing a message doesn't work in the function either.
# -*- coding: utf-8 -*-
from PyQt5 import QtCore, QtGui, uic
from PyQt5.QtWidgets import *
from PyQt5.QtGui import (QBrush, QColor, QFont, QLinearGradient, QPainter, QPainterPath, QPalette, QPen)
from APM_ui import Ui_Window
import random, sys
print('... APM Loading ...')
uppercase = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']
lowercase = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
PasswordFont = QFont('Lato', 11, QFont.Bold, True)
class Window(Ui_Window):
def __init__(self, parent = None, name = None, fl = 0):
Ui_Window.__init__(self, parent, name, fl)
def createDefaultClicked(self):
default = []
_translate = QtCore.QCoreApplication.translate
done = 0
while True:
if done!= 12:
random.shuffle(lowercase)
random.shuffle(uppercase)
decision = random.randint(0, 2)
if decision == 0:
default.append(random.randint(0, 9))
done += 1
continue
if decision == 1:
default.append(lowercase[0])
done += 1
continue
if decision == 2:
default.append(uppercase[0])
done += 1
continue
if done == 12:
break
self.defaultPWDisp.setFont(PasswordFont)
defaultPassword = '{}{}{}{}{}{}'.format(*default)
self.defaultPWDisp.setText(_translate('Window', '<html><head/><body><p align=\'center\'>%s is your new password!</p></body></html>' % defaultPassword))
def createSmallClicked(self):
small = []
_translate = QtCore.QCoreApplication.translate
done = 0
while True:
if done!= 6:
random.shuffle(lowercase)
random.shuffle(uppercase)
decision = random.randint(0, 2)
if decision == 0:
small.append(random.randint(0, 9))
done += 1
continue
if decision == 1:
small.append(lowercase[0])
done += 1
continue
if decision == 2:
small.append(uppercase[0])
done += 1
continue
if done == 6:
break
self.smallPWDisp.setFont(PasswordFont)
smallPassword = '{}{}{}{}{}{}'.format(*small)
self.smallPWDisp.setText(_translate('Window', '<html><head/><body><p align=\'center\'>%s is your new password!</p></body></html>' % smallPassword))
def createTinyClicked(self):
tiny = []
_translate = QtCore.QCoreApplication.translate
done = 0
while True:
if done!= 6:
random.shuffle(lowercase)
random.shuffle(uppercase)
decision = random.randint(0, 2)
if decision == 0:
tiny.append(random.randint(0, 9))
done += 1
continue
if decision == 1:
tiny.append(lowercase[0])
done += 1
continue
if decision == 2:
tiny.append(uppercase[0])
done += 1
continue
if done == 6:
break
self.tinyPWDisp.setFont(PasswordFont)
tinyPassword = '{}{}{}{}{}{}'.format(*tiny)
self.tinyPWDisp.setText(_translate('Window', '<html><head/><body><p align=\'center\'>%s is your new password!</p></body></html>' % tinyPassword))
def createMidgetClicked(self):
defaultPassword = []
done = 0
while True:
if done!= 4:
random.shuffle(lowercase)
random.shuffle(uppercase)
decision = random.randint(0, 2)
if decision == 0:
defaultPassword.append(random.randint(0, 9))
done += 1
continue
if decision == 1:
defaultPassword.append(lowercase[0])
done += 1
continue
if decision == 2:
defaultPassword.append(uppercase[0])
done += 1
continue
if done == 4:
break
self.midgetPWDisp.setFont(PasswordFont)
midgetPassword = '{}{}{}{}{}{}'.format(*midget)
self.midgetPWDisp.setText(_translate('Window', '<html><head/><body><p align=\'center\'>%s is your new password!</p></body></html>' % midgetPassword))
# Look here! :P
self.createDefault.clicked.connect(self.createDefaultClicked)
self.createSmall.clicked.connect(self.createSmallClicked)
self.createTiny.clicked.connect(self.createTinyClicked)
self.createMidget.clicked.connect(self.createMidgetClicked)
if __name__ == '__main__':
app = QApplication(sys.argv)
window = QMainWindow()
ui = Ui_Window()
ui.setupUi(window)
window.show()
sys.exit(app.exec_())
1 answers
solution1
2 2014-09-10 09:37:45
I cannot run your code, but main issue seems to be incorrect indentation. Only your clicked.connect calls should be in the constructor (above all other methods), the other methods outside. See following runnable template for how should your code be structured:
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
class Window(QWidget):
def __init__(self, *args, **kwargs):
QWidget.__init__(self, *args, **kwargs)
self.button1 = QPushButton("Test 1", self)
self.button2 = QPushButton("Test 2", self)
self.button3 = QPushButton("Test 3", self)
self.layout = QHBoxLayout()
self.layout.addWidget(self.button1)
self.layout.addWidget(self.button2)
self.layout.addWidget(self.button3)
self.setLayout(self.layout)
self.show()
self.button1.clicked.connect(self.on_button1)
self.button2.clicked.connect(self.on_button2)
self.button3.clicked.connect(self.on_button3)
@pyqtSlot()
def on_button1(self):
print("Button #1")
@pyqtSlot()
def on_button2(self):
print("Button #2")
@pyqtSlot()
def on_button3(self):
print("Button #3")
if __name__ == "__main__":
app = QApplication(sys.argv)
win = Window()
sys.exit(app.exec_())
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