tbhaxor
Reputation: 1943
PyQT5 Signals connect method not actually binding the method
I am creating a python application.
Link to ui.py and app.py: https://gist.github.com/tbhaxor/f68387d49bc59b2bdd025512c17a2534
ui.py
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'recent.ui'
#
# Created by: PyQt5 UI code generator 5.14.0
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.setWindowModality(QtCore.Qt.ApplicationModal)
MainWindow.setEnabled(True)
MainWindow.resize(975, 600)
MainWindow.setMinimumSize(QtCore.QSize(975, 600))
MainWindow.setMaximumSize(QtCore.QSize(975, 600))
MainWindow.setMouseTracking(False)
MainWindow.setFocusPolicy(QtCore.Qt.NoFocus)
MainWindow.setAutoFillBackground(False)
MainWindow.setToolButtonStyle(QtCore.Qt.ToolButtonIconOnly)
MainWindow.setTabShape(QtWidgets.QTabWidget.Rounded)
MainWindow.setUnifiedTitleAndToolBarOnMac(True)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.tabWidget = QtWidgets.QTabWidget(self.centralwidget)
self.tabWidget.setGeometry(QtCore.QRect(-3, 0, 981, 611))
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.tabWidget.sizePolicy().hasHeightForWidth())
self.tabWidget.setSizePolicy(sizePolicy)
self.tabWidget.setObjectName("tabWidget")
self.t_msngr = QtWidgets.QWidget()
self.t_msngr.setObjectName("t_msngr")
self.label_4 = QtWidgets.QLabel(self.t_msngr)
self.label_4.setGeometry(QtCore.QRect(10, 540, 510, 17))
self.label_4.setObjectName("label_4")
self.widget = QtWidgets.QWidget(self.t_msngr)
self.widget.setGeometry(QtCore.QRect(13, 10, 951, 194))
self.widget.setObjectName("widget")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.widget)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.label = QtWidgets.QLabel(self.widget)
self.label.setObjectName("label")
self.horizontalLayout.addWidget(self.label)
self.txt_recent_profiles = QtWidgets.QPlainTextEdit(self.widget)
self.txt_recent_profiles.setReadOnly(True)
self.txt_recent_profiles.setObjectName("txt_recent_profiles")
self.horizontalLayout.addWidget(self.txt_recent_profiles)
self.widget1 = QtWidgets.QWidget(self.t_msngr)
self.widget1.setGeometry(QtCore.QRect(581, 530, 381, 31))
self.widget1.setObjectName("widget1")
self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.widget1)
self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.btn_fetch = QtWidgets.QPushButton(self.widget1)
self.btn_fetch.setObjectName("btn_fetch")
self.horizontalLayout_2.addWidget(self.btn_fetch)
self.btn_save_template = QtWidgets.QPushButton(self.widget1)
self.btn_save_template.setObjectName("btn_save_template")
self.horizontalLayout_2.addWidget(self.btn_save_template)
self.btn_send_all = QtWidgets.QPushButton(self.widget1)
self.btn_send_all.setObjectName("btn_send_all")
self.horizontalLayout_2.addWidget(self.btn_send_all)
self.widget2 = QtWidgets.QWidget(self.t_msngr)
self.widget2.setGeometry(QtCore.QRect(120, 220, 841, 30))
self.widget2.setObjectName("widget2")
self.horizontalLayout_5 = QtWidgets.QHBoxLayout(self.widget2)
self.horizontalLayout_5.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_5.setObjectName("horizontalLayout_5")
self.horizontalLayout_3 = QtWidgets.QHBoxLayout()
self.horizontalLayout_3.setObjectName("horizontalLayout_3")
self.label_2 = QtWidgets.QLabel(self.widget2)
self.label_2.setObjectName("label_2")
self.horizontalLayout_3.addWidget(self.label_2)
self.search_predicate = QtWidgets.QComboBox(self.widget2)
self.search_predicate.setObjectName("search_predicate")
self.search_predicate.addItem("")
self.search_predicate.addItem("")
self.search_predicate.addItem("")
self.search_predicate.addItem("")
self.horizontalLayout_3.addWidget(self.search_predicate)
self.horizontalLayout_5.addLayout(self.horizontalLayout_3)
spacerItem = QtWidgets.QSpacerItem(150, 20, QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout_5.addItem(spacerItem)
self.horizontalLayout_4 = QtWidgets.QHBoxLayout()
self.horizontalLayout_4.setObjectName("horizontalLayout_4")
self.searchee = QtWidgets.QLabel(self.widget2)
self.searchee.setObjectName("searchee")
self.horizontalLayout_4.addWidget(self.searchee)
self.search_limit = QtWidgets.QSpinBox(self.widget2)
self.search_limit.setObjectName("search_limit")
self.horizontalLayout_4.addWidget(self.search_limit)
self.horizontalLayout_5.addLayout(self.horizontalLayout_4)
self.widget3 = QtWidgets.QWidget(self.t_msngr)
self.widget3.setGeometry(QtCore.QRect(10, 270, 950, 241))
self.widget3.setObjectName("widget3")
self.verticalLayout = QtWidgets.QVBoxLayout(self.widget3)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.label_3 = QtWidgets.QLabel(self.widget3)
self.label_3.setObjectName("label_3")
self.verticalLayout.addWidget(self.label_3)
self.txt_template = QtWidgets.QPlainTextEdit(self.widget3)
self.txt_template.setReadOnly(True)
self.txt_template.setObjectName("txt_template")
self.verticalLayout.addWidget(self.txt_template)
self.tabWidget.addTab(self.t_msngr, "")
self.t_stngs = QtWidgets.QWidget()
self.t_stngs.setObjectName("t_stngs")
self.btn_save_settings = QtWidgets.QPushButton(self.t_stngs)
self.btn_save_settings.setGeometry(QtCore.QRect(880, 540, 83, 25))
self.btn_save_settings.setObjectName("btn_save_settings")
self.widget4 = QtWidgets.QWidget(self.t_stngs)
self.widget4.setGeometry(QtCore.QRect(10, 20, 960, 81))
self.widget4.setObjectName("widget4")
self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.widget4)
self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
self.verticalLayout_2.setObjectName("verticalLayout_2")
self.horizontalLayout_6 = QtWidgets.QHBoxLayout()
self.horizontalLayout_6.setObjectName("horizontalLayout_6")
self.label_5 = QtWidgets.QLabel(self.widget4)
self.label_5.setObjectName("label_5")
self.horizontalLayout_6.addWidget(self.label_5)
spacerItem1 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout_6.addItem(spacerItem1)
self.txt_email = QtWidgets.QLineEdit(self.widget4)
self.txt_email.setClearButtonEnabled(True)
self.txt_email.setObjectName("txt_email")
self.horizontalLayout_6.addWidget(self.txt_email)
self.verticalLayout_2.addLayout(self.horizontalLayout_6)
self.horizontalLayout_7 = QtWidgets.QHBoxLayout()
self.horizontalLayout_7.setObjectName("horizontalLayout_7")
self.label_6 = QtWidgets.QLabel(self.widget4)
self.label_6.setObjectName("label_6")
self.horizontalLayout_7.addWidget(self.label_6)
spacerItem2 = QtWidgets.QSpacerItem(72, 20, QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout_7.addItem(spacerItem2)
self.txt_passwd = QtWidgets.QLineEdit(self.widget4)
self.txt_passwd.setFrame(True)
self.txt_passwd.setEchoMode(QtWidgets.QLineEdit.PasswordEchoOnEdit)
self.txt_passwd.setClearButtonEnabled(True)
self.txt_passwd.setObjectName("txt_passwd")
self.horizontalLayout_7.addWidget(self.txt_passwd)
self.verticalLayout_2.addLayout(self.horizontalLayout_7)
self.widget5 = QtWidgets.QWidget(self.t_stngs)
self.widget5.setGeometry(QtCore.QRect(10, 140, 960, 27))
self.widget5.setObjectName("widget5")
self.horizontalLayout_8 = QtWidgets.QHBoxLayout(self.widget5)
self.horizontalLayout_8.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_8.setObjectName("horizontalLayout_8")
self.label_7 = QtWidgets.QLabel(self.widget5)
self.label_7.setObjectName("label_7")
self.horizontalLayout_8.addWidget(self.label_7)
self.txt_api_key = QtWidgets.QLineEdit(self.widget5)
self.txt_api_key.setClearButtonEnabled(True)
self.txt_api_key.setObjectName("txt_api_key")
self.horizontalLayout_8.addWidget(self.txt_api_key)
self.widget6 = QtWidgets.QWidget(self.t_stngs)
self.widget6.setGeometry(QtCore.QRect(10, 185, 341, 61))
self.widget6.setObjectName("widget6")
self.verticalLayout_3 = QtWidgets.QVBoxLayout(self.widget6)
self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
self.verticalLayout_3.setObjectName("verticalLayout_3")
self.horizontalLayout_9 = QtWidgets.QHBoxLayout()
self.horizontalLayout_9.setObjectName("horizontalLayout_9")
self.label_8 = QtWidgets.QLabel(self.widget6)
self.label_8.setObjectName("label_8")
self.horizontalLayout_9.addWidget(self.label_8)
self.lbl_plan_type = QtWidgets.QLabel(self.widget6)
self.lbl_plan_type.setText("")
self.lbl_plan_type.setObjectName("lbl_plan_type")
self.horizontalLayout_9.addWidget(self.lbl_plan_type)
self.verticalLayout_3.addLayout(self.horizontalLayout_9)
self.horizontalLayout_10 = QtWidgets.QHBoxLayout()
self.horizontalLayout_10.setObjectName("horizontalLayout_10")
self.label_9 = QtWidgets.QLabel(self.widget6)
self.label_9.setObjectName("label_9")
self.horizontalLayout_10.addWidget(self.label_9)
self.lbl_expiry = QtWidgets.QLabel(self.widget6)
self.lbl_expiry.setText("")
self.lbl_expiry.setObjectName("lbl_expiry")
self.horizontalLayout_10.addWidget(self.lbl_expiry)
self.verticalLayout_3.addLayout(self.horizontalLayout_10)
self.widget7 = QtWidgets.QWidget(self.t_stngs)
self.widget7.setGeometry(QtCore.QRect(630, 220, 341, 28))
self.widget7.setObjectName("widget7")
self.horizontalLayout_11 = QtWidgets.QHBoxLayout(self.widget7)
self.horizontalLayout_11.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout_11.setObjectName("horizontalLayout_11")
self.label_10 = QtWidgets.QLabel(self.widget7)
self.label_10.setObjectName("label_10")
self.horizontalLayout_11.addWidget(self.label_10)
self.delay = QtWidgets.QSpinBox(self.widget7)
self.delay.setMinimum(10)
self.delay.setMaximum(20)
self.delay.setObjectName("delay")
self.horizontalLayout_11.addWidget(self.delay)
self.tabWidget.addTab(self.t_stngs, "")
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
self.tabWidget.setCurrentIndex(0)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "Linkedin Recent Connection Messenger"))
self.label_4.setText(_translate("MainWindow", "<html><head/><body><p>Use <span style=\" font-style:italic;\">{{name}}</span> for dynamic naming</p></body></html>"))
self.label.setText(_translate("MainWindow", "Recent Profiles"))
self.btn_fetch.setText(_translate("MainWindow", "Fetch"))
self.btn_save_template.setText(_translate("MainWindow", "Save Template"))
self.btn_send_all.setText(_translate("MainWindow", "Send To All"))
self.label_2.setText(_translate("MainWindow", "Search By"))
self.search_predicate.setItemText(0, _translate("MainWindow", "Days"))
self.search_predicate.setItemText(1, _translate("MainWindow", "Weeks"))
self.search_predicate.setItemText(2, _translate("MainWindow", "Months"))
self.search_predicate.setItemText(3, _translate("MainWindow", "Years"))
self.searchee.setText(_translate("MainWindow", "Search Limit"))
self.label_3.setText(_translate("MainWindow", "Template"))
self.tabWidget.setTabText(self.tabWidget.indexOf(self.t_msngr), _translate("MainWindow", "Messenger"))
self.btn_save_settings.setText(_translate("MainWindow", "Save All"))
self.label_5.setText(_translate("MainWindow", "Email Address"))
self.label_6.setText(_translate("MainWindow", "Password"))
self.label_7.setText(_translate("MainWindow", "API Key"))
self.label_8.setText(_translate("MainWindow", "Plan Type"))
self.label_9.setText(_translate("MainWindow", "Expiry Date"))
self.label_10.setText(_translate("MainWindow", "Delay"))
self.delay.setSuffix(_translate("MainWindow", " secs"))
self.tabWidget.setTabText(self.tabWidget.indexOf(self.t_stngs), _translate("MainWindow", "Settings"))
app.py
from PyQt5 import QtWidgets, QtCore
from ui import Ui_MainWindow
from selenium.webdriver.chrome.webdriver import WebDriver
from selenium.webdriver.chrome.options import Options
import os
import traceback
import pickle as pkl
from pathlib import Path
from typing import List, Dict, Union
class Application(Ui_MainWindow):
def __init__(self,
window: QtWidgets.QMainWindow,
driver: WebDriver = None):
self.parent = window
self.driver = driver
self.setupUi(window)
self.retranslateUi(window)
qtRectangle = window.frameGeometry()
centerPoint = QtWidgets.QDesktopWidget().availableGeometry().center()
qtRectangle.moveCenter(centerPoint)
window.move(qtRectangle.topLeft())
self.__makeHandlers()
self.file = os.path.join(Path.home(), "_linkedin.db")
self.db: Dict[str, str] = {
"api": "",
"email": "",
"password": "",
"sent": [],
"delay": 10,
"template": ""
}
self.search_limit.valueChanged.connect(print)
pass
def __makeHandlers(self):
self.search_limit.valueChanged.connect(print)
pass
def handle_fetch(self):
pass
def __login(self):
driver.get("https://www.linkedin.com/login")
# /html/body/div[1]/main/div/form/div[1]/input
# /html/body/div[1]/main/div/form/div[2]/input
# /html/body/div[1]/main/div/form/div[4]/button
pass
pass
if __name__ == "__main__":
import sys
try:
opts = Options()
opts.headless = os.environ.get("PYDBG", "0") != "1"
driver: WebDriver = WebDriver(options=opts)
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Application(MainWindow)
ui.setupUi(MainWindow)
MainWindow.show()
app.exec_()
pass
except Exception:
print(traceback.format_exc())
pass
finally:
driver.quit()
pass
When i am trying to connect search_limit (spinbox) with print function on event valueChanged at line 40 in app.py, it's neither connecting the print function nor returning any error at line 72 in app.py
Upvotes: 1
Views: 49
Answers (1)
eyllanesc
Reputation: 243907
The problem is trivial: By executing the setupUi method you are creating the internal widgets, what happens if setupUi is run a second time? Well, the old widgets are removed and new ones are created. In your case you have called setupUi first in the constructor of Application and you have called it again after ui = Application(MainWindow), on the first call you make the connection and then delete it so the connection was broken. The solution: Just call setupUi once. It is also not necessary to call retranslateUi since setupUi already does.
class Application(Ui_MainWindow):
def __init__(self,
window: QtWidgets.QMainWindow,
driver: WebDriver = None):
self.parent = window
self.driver = driver
self.setupUi(window)
# self.retranslateUi(window) # remove this line
qtRectangle = window.frameGeometry()
# ...
if __name__ == "__main__":
import sys
try:
opts = Options()
opts.headless = os.environ.get("PYDBG", "0") != "1"
driver: WebDriver = WebDriver(options=opts)
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Application(MainWindow)
# ui.setupUi(MainWindow) # remove this line
MainWindow.show()
app.exec_()
except Exception:
print(traceback.format_exc())
finally:
driver.quit()Upvotes: 2
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