Python PyQt5按钮单击事件未在单击预期按钮时触发
我正在为PyQt5中的应用程序开发安装菜单。目录结构如下:Python PyQt5按钮单击事件未在单击预期按钮时触发,python,pyqt,pyqt5,Python,Pyqt,Pyqt5,我正在为PyQt5中的应用程序开发安装菜单。目录结构如下: install-menu/ ├── app.py ├── controller │ ├── controller.py │ ├── __init__.py │ └── __pycache__ │ ├── controller.cpython-38.pyc │ └── __init__.cpython-38.pyc ├── model │ ├── __init__.py │ ├── model.
install-menu/
├── app.py
├── controller
│ ├── controller.py
│ ├── __init__.py
│ └── __pycache__
│ ├── controller.cpython-38.pyc
│ └── __init__.cpython-38.pyc
├── model
│ ├── __init__.py
│ ├── model.py
│ └── __pycache__
│ ├── __init__.cpython-38.pyc
│ └── model.cpython-38.pyc
└── view
├── __init__.py
├── __pycache__
│ ├── __init__.cpython-38.pyc
│ └── view.cpython-38.pyc
└── view.py
我试图遵循MVC架构。相关文件的代码如下:
- app.py
- controller.py
- model.py
- view.py
但是点击安装按钮,回调函数并没有启动。我不知道出了什么问题。单击菜单项时应使用与按钮上相同的文本调用相同的函数。问题很简单:必须将Installer类对象分配给变量:
installer=installer(model=model,view=view)
另一方面,必须在model.py中将self.pxeDetails更改为pxeDetails:
def getPxe(self,view):
“”“计算表达式。”“”
pxeDetails=[]
打印(“已调用读取标签函数”)
尝试:
self.pxeHostname=view.txtPxeHostname.text()
self.pxeIP=view.txtPxeIP.text()
pxeDetails.append(self.pxeHostname)
pxeDetails.append(self.pxeIP)
除例外情况外:
pxeDetails.append(错误消息)
返回pxeDetails
并将controller.py中的self.pxeValues更改为pxeValues:
def printMe(自):
“”“用于安装PXE服务器的生成功能”“”
pxeValues=self.\u model.getPxe(self.\u视图)
打印(PXE值)
问题很简单:必须将Installer类对象分配给变量:
installer=installer(model=model,view=view)
另一方面,必须在model.py中将self.pxeDetails更改为pxeDetails:
def getPxe(self,view):
“”“计算表达式。”“”
pxeDetails=[]
打印(“已调用读取标签函数”)
尝试:
self.pxeHostname=view.txtPxeHostname.text()
self.pxeIP=view.txtPxeIP.text()
pxeDetails.append(self.pxeHostname)
pxeDetails.append(self.pxeIP)
除例外情况外:
pxeDetails.append(错误消息)
返回pxeDetails
并将controller.py中的self.pxeValues更改为pxeValues:
def printMe(自):
“”“用于安装PXE服务器的生成功能”“”
pxeValues=self.\u model.getPxe(self.\u视图)
打印(PXE值)
#!/usr/bin/env python3
from controller.controller import Installer
from view.view import GUIDisplay
from model.model import parameters
from PyQt5.QtWidgets import QApplication
import sys
# Client code
def main():
"""Main function."""
# Create an instance of `QApplication`
qapp = QApplication(sys.argv)
# Show the installer's GUI
view = GUIDisplay()
view.show()
# Create instances of the model and the controller
model = parameters()
#Calling Installer/Controller
Installer(model=model, view=view)
# Execute installer's main loop
sys.exit(qapp.exec_())
if __name__ == "__main__":
main()
# Create a Controller class to connect the GUI and the model
class Installer:
"""Installer Controller."""
def __init__(self, model, view):
"""Controller initializer."""
self._model = model
self._view = view
# Connect signals and slots
self._connectSignals()
def _connectSignals(self):
"""Connect signals and slots."""
self.installBtn = self._view.install
self.installBtn.clicked.connect(self.printMe)
def printMe(self):
"""Build functionality for installation of PXE Server"""
self.pxeValues = self._model.getPxe(self._view)
print (pxeValues)
# Create a Model to handle the operations
# Define a global error object
ERROR_MSG = "ERROR"
class parameters:
def __init__(self):
self.pxeHostname=""
self.pxeIP=""
def getPxe(self, view):
"""Evaluate an expression."""
self.pxeDetails = []
print ("Read Label Function called.")
try:
self.pxeHostname = view.txtPxeHostname.text()
self.pxeIP = view.txtPxeIP.text()
self.pxeDetails.append(self.pxeHostname)
self.pxeDetails.append(self.pxeIP)
except Exception:
self.pxeDetails.append(ERROR_MSG)
return pxeDetails
# Import modules for view to work
# Import QApplication and the required widgets from PyQt5.QtWidgets
from PyQt5.QtCore import Qt
from PyQt5.QtCore import QRect
from PyQt5.QtCore import QMetaObject
from PyQt5.QtCore import QCoreApplication
from PyQt5.QtWidgets import QGridLayout
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QFormLayout
from PyQt5.QtWidgets import QHBoxLayout
from PyQt5.QtWidgets import QStatusBar
# Create a subclass of QMainWindow to setup the installer's GUI
class GUIDisplay(QMainWindow):
"""Installer's View (GUI)."""
def __init__(self):
"""View initializer."""
super().__init__()
# Set some main window's properties
QMainWindow.setObjectName(self,"MainWindow")
QMainWindow.resize(self, 795, 600)
self.centralwidget = QWidget()
self.centralwidget.setObjectName("centralwidget")
# Create the display and the buttons
self.createDisplay()
self.createButtons()
self.menus()
self.fillPlaceHolders(QMainWindow)
QMetaObject.connectSlotsByName(self)
def menus(self):
menu = self.menuBar()
# Setting Menu and items
settings = menu.addMenu("Settings")
install = settings.addMenu("Install")
reinstall = settings.addMenu("Reinstall")
status = settings.addMenu("Status")
def createDisplay(self):
"""Creating display layouts."""
# Main Heading
self.mainHeading = QLabel(self.centralwidget)
self.mainHeading.setGeometry(QRect(350, 20, 141, 20))
self.mainHeading.setObjectName("mainHeading")
# PXE Server configuration paramaters and Layouts
## Creating main Heading and labels for PXE Server Configurations
self.pxeConfig = QLabel(self.centralwidget)
self.pxeConfig.setGeometry(QRect(10, 70, 231, 18))
self.pxeConfig.setObjectName("pxeConfig")
## Adding Form Layout for Hostname and IP for PXE Server
self.pxeServerLayout = QWidget(self.centralwidget)
self.pxeServerLayout.setGeometry(QRect(129, 90, 561, 61))
self.pxeServerLayout.setObjectName("pxeServerLayout")
self.pxeLayout = QFormLayout(self.pxeServerLayout)
self.pxeLayout.setContentsMargins(0, 0, 0, 0)
self.pxeLayout.setObjectName("pxeLayout")
## Adding Hostname Labels and TextField for PXE Server
self.pxeHostname = QLabel(self.pxeServerLayout)
self.pxeHostname.setObjectName("pxeHostname")
self.pxeLayout.setWidget(0, QFormLayout.LabelRole, self.pxeHostname)
self.txtPxeHostname = QLineEdit(self.pxeServerLayout)
self.txtPxeHostname.setObjectName("txtPxeHostname")
## Adding IP Address Labels and TextField for PXE Server
self.pxeLayout.setWidget(0, QFormLayout.FieldRole, self.txtPxeHostname)
self.pxeIP = QLabel(self.pxeServerLayout)
self.pxeIP.setObjectName("pxeIP")
self.pxeLayout.setWidget(1, QFormLayout.LabelRole, self.pxeIP)
self.txtPxeIP = QLineEdit(self.pxeServerLayout)
self.txtPxeIP.setObjectName("txtPxeIP")
self.pxeLayout.setWidget(1, QFormLayout.FieldRole, self.txtPxeIP)
def createButtons(self):
"""Create the buttons."""
# Add buttonsLayout to the general layout
self.horizontalLayoutWidget = QWidget(self.centralwidget)
self.horizontalLayoutWidget.setGeometry(QRect(133, 500, 561, 31))
self.horizontalLayoutWidget.setObjectName("horizontalLayoutWidget")
self.horizontalLayout = QHBoxLayout(self.horizontalLayoutWidget)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.install = QPushButton(self.horizontalLayoutWidget)
self.install.setObjectName("install")
self.horizontalLayout.addWidget(self.install)
self.reinstall = QPushButton(self.horizontalLayoutWidget)
self.reinstall.setObjectName("reinstall")
self.horizontalLayout.addWidget(self.reinstall)
self.status = QPushButton(self.horizontalLayoutWidget)
self.status.setObjectName("status")
self.horizontalLayout.addWidget(self.status)
QMainWindow.setCentralWidget(self, self.centralwidget)
self.statusbar = QStatusBar()
self.statusbar.setObjectName("statusbar")
QMainWindow.setStatusBar(self, self.statusbar)
def fillPlaceHolders(self, MainWindow):
_translate = QCoreApplication.translate
MainWindow.setWindowTitle(self, _translate("MainWindow", "PXE Server Installer"))
self.mainHeading.setText("Installation Setup")
self.pxeConfig.setText("PxeBoot Server Configuration:")
self.pxeHostname.setText("PXE Hostname:")
self.pxeIP.setText("PXE Server IP:")
self.install.setText("Install")
self.reinstall.setText("Reinstall")
self.status.setText("status")