Installing pyqtgraph

[Wahabo Ouedraogo]

Hello,

I have some difficults to configure pyqtgraph in my computer. when i run my code, i obtain this message:

PS C:\Users\ThinkPad> & python "d:/Bureau/VISUAL STUDIO CODE/Untitled_pyqtgraph.py"

Traceback (most recent call last):

  File "d:/Bureau/VISUAL STUDIO CODE/Untitled_pyqtgraph.py", line 102, in <module>

    w = Window()

  File "d:/Bureau/VISUAL STUDIO CODE/Untitled_pyqtgraph.py", line 40, in __init__

    self.canva = pg.GraphicsWindow()

AttributeError: module 'pyqtgraph' has no attribute 'GraphicsWindow'

My code is below.

# -*- coding: utf-8 -*-

"""

Created on Sat Apr 25 13:33:15 2020

@author: ThinkPad

"""

from PyQt5.QtCore import *

from PyQt5.QtGui import *

from PyQt5.QtWidgets import *

import pyqtgraph as pg

from pyqtgraph.Qt import QtGui, QtCore

import numpy as np

import sys

class Window(QMainWindow):

    def __init__(self, parent=None, flags=Qt.WindowFlags()):

        super().__init__(parent=parent, flags=flags)

        

        self.a = []

        self.b = []

        self.x = []

        self.y = []

        

        self.mapper = QSignalMapper()

        

        self.Widget = QWidget()

        self.setCentralWidget(self.Widget)

        

        self.Layout_widget = QGridLayout()

        self.Widget.setLayout(self.Layout_widget)

        

        self.groupbox = QGroupBox(self.Widget)

        #self.groupbox.setCheckable(True)

       # self.groupbox.clicked.connect(self.Afficher)

        

        self.groupbox_layout = QVBoxLayout()

        self.groupbox.setLayout(self.groupbox_layout)

        

        self.canva = pg.GraphicsWindow()

       # self.graph_1 = self.canva.addPlot(title="Basic array plotting")

        

        self.Layout_widget.addWidget(self.groupbox)

        self.Layout_widget.addWidget(self.canva)

        

        self.Checkbox = []

        for i in range (3):

            checkbox = QCheckBox("Capteur {0}".format(i))

            checkbox.stateChanged.connect(self.Afficher)

            self.Checkbox.append(checkbox)

            

        for i in range(3):

            self.groupbox_layout.addWidget(self.Checkbox[i])

            

        

    

    

            

            

        self.x1 = np.linspace(0,20,10)

        self.y1 =  np.arange(0,10)

        self.x.append(self.x1)

        self.y.append(self.y1)

        

        

        self.x2 = np.arange(0,10)

        self.y2 = np.linspace(0,20,10)

        self.x.append(self.x2)

        self.y.append(self.y2)

        

        self.x3 = np.random.normal(size=10)

        self.y3 = [i**2 for i in range(10)]

        self.x.append(self.x3)

        self.y.append(self.y3)

        

        

    def Afficher(self):

        self.a = []

        b=self.sender()

        print(b.text())

        self.a.append(b)           

      

        for i in range(len(self.a)):

            b = self.canva.addPlot(title="{}".format(self.a[i].text()),row=0,col=i)

            self.b.append(b)

            

        for i in range(len(self.b)):

          

                self.b[i].plot(self.x[i],self.y[i])

            

            

            

    

    

            

            

        

        

        

if __name__ == "__main__":

    app = QApplication(sys.argv)

    w = Window()

    w.show()

    sys.exit(app.exec_())

    

[vas...@gmail.com]

Hello Wahabo.

Maybe is better to start with the lower number of imports at the beginning and add it later, if needed, after you have a working-well initial release. This code is working for me (I also removed super-class):

import pyqtgraph as pg

import numpy as np
import sys

class Window(pg.Qt.QtGui.QMainWindow):
    def __init__(self, parent=None, flags=pg.Qt.QtCore.Qt.WindowFlags()):
        pg.Qt.QtGui.QMainWindow.__init__(self, flags=flags)

       
        self.a = []
        self.b = []
        self.x = []
        self.y = []
       

        self.mapper = pg.Qt.QtCore.QSignalMapper()
       
        self.Widget = pg.Qt.QtGui.QWidget()
        self.setCentralWidget(self.Widget)
       
        self.Layout_widget =  pg.Qt.QtGui.QGridLayout()
        self.Widget.setLayout(self.Layout_widget)
       
        self.groupbox = pg.Qt.QtGui.QGroupBox(self.Widget)
       # self.groupbox.setCheckable(True)
       # self.groupbox.clicked.connect(self.Afficher)
       
        self.groupbox_layout = pg.Qt.QtGui.QVBoxLayout()

        self.groupbox.setLayout(self.groupbox_layout)
       
        self.canva = pg.GraphicsWindow()
       # self.graph_1 = self.canva.addPlot(title="Basic array plotting")
       
        self.Layout_widget.addWidget(self.groupbox)
        self.Layout_widget.addWidget(self.canva)
       
        self.Checkbox = []
        for i in range (3):

            checkbox = pg.Qt.QtGui.QCheckBox("Capteur {0}".format(i))

    app = pg.Qt.QtGui.QApplication(sys.argv)

    w = Window()
    w.show()
    sys.exit(app.exec_())

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