pyqt5 QPushButton() (mit clicked.connect()) funktioniert nicht

Question

Ich habe diese sehr einfache GUI, aber ich kann den Druckknopf nicht funktionieren. Ich habe versucht, Teil und Lambda in der clicked.connect-Befehl, aber hatte kein Glück. Ich weiß, dass ich den Knopf nur einmal drücken konnte, da ich keine Schleife habe, um die Position jedes neuen Eingabefeldes zu ändern, aber ich möchte nur, dass es zuerst funktioniert.

Dank für Sie jeden Rat

import sys 
from PyQt5.QtWidgets import (QApplication, QWidget, QPushButton, QSizePolicy, 
         QDoubleSpinBox, QLabel, QCheckBox, QMainWindow, 
QGridLayout) 
from PyQt5.QtCore import QCoreApplication 
import matplotlib 
from matplotlib.figure import Figure 
import numpy as np 
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas 
from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar 



class MainWindow(QWidget): 

    def __init__(self): 
     super().__init__() 

     self.initUI() 

    def initUI(self): 

     # Geometry of main window: 
     self.setGeometry(200, 200, 1000, 1000) 
     self.setWindowTitle('Simulation') 

     #--------------------------------------- 
       # Button for adding blades 
     blade_button = QPushButton('Add', self) 
     blade_button.clicked.connect(self.add_Bladebox) 
     blade_button.move(800, 600) 


     #--------------------------------------- 

     self.show() 

    # Method for input box: 
    def inputBox(self, left, top, maxvalue, step, default,decimals): 
     box = QDoubleSpinBox(self) 
     box.move(left,top) 
     box.setDecimals(decimals) 
     box.setMaximum(maxvalue) 
     box.setSingleStep(step) 
     box.setProperty("value", default) 
     box.resize(box.sizeHint()) 
     return box 

    # Method for adding blade boxes 
    def add_Bladebox(self): 
     left = 900 
     top = 500 
     maxvalue = 3 
     step=1 
     default=0 
     decimals=1 
     blade_box = self.inputBox(left, top, maxvalue, step, default, decimals) 


if __name__ == '__main__': 

    app = QCoreApplication.instance() 
    if app is None: 
     app = QApplication(sys.argv) 
    ex = MainWindow() 
    sys.exit(app.exec_()) 

Answer 1

Dieses Versuchen:

import sys 
from PyQt5.QtWidgets import (QApplication, QWidget, QPushButton, QSizePolicy, 
         QDoubleSpinBox, QLabel, QCheckBox, QMainWindow, 
QGridLayout) 
from PyQt5.QtCore import QCoreApplication 
import matplotlib 
from matplotlib.figure import Figure 
import numpy as np 
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas 
from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar 



class MainWindow(QWidget): 

    def __init__(self): 
     super().__init__() 

     self.initUI() 

    def initUI(self): 

     # Geometry of main window: 
     self.setGeometry(200, 200, 1000, 1000) 
     self.setWindowTitle('Simulation') 

     #--------------------------------------- 
       # Button for adding blades 
     blade_button = QPushButton('Add', self) 
     blade_button.clicked.connect(self.add_Bladebox) 
     blade_button.move(800, 600) 


     #--------------------------------------- 

     self.show() 

    # Method for input box: 
    def inputBox(self, left, top, maxvalue, step, default,decimals): 
     box = QDoubleSpinBox(self) 
     box.move(left,top) 
     box.setDecimals(decimals) 
     box.setMaximum(maxvalue) 
     box.setSingleStep(step) 
     box.setProperty("value", default) 
     box.resize(box.sizeHint()) 
     box.show() 

    # Method for adding blade boxes 
    def add_Bladebox(self): 

     print('This is Ok') 

     left = 900 
     top = 500 
     maxvalue = 3 
     step = 1 
     default = 0 
     decimals = 1 
     self.inputBox(left, top, maxvalue, step, default, decimals) 


if __name__ == '__main__': 

    app = QCoreApplication.instance() 
    if app is None: 
     app = QApplication(sys.argv) 
    ex = MainWindow() 
    sys.exit(app.exec_())