Pyinstaller Trouble with PyQt5 and Matplotlib on Python 3.7

Pyinstaller is a fantastic python to exe packager. When I tried making a stand alone exe with a python script ( using a quick PyQt5 example, it creates a working exe file right off the bat using this simple command:

pyinstaller --onefile


import sys
from PyQt5.QtWidgets import QWidget, QMessageBox, QApplication

class Example(QWidget):    
    def __init__(self):
    def initUI(self):               
        self.setGeometry(300, 300, 250, 150)        
        self.setWindowTitle('Message box')          
    def closeEvent(self, event):
        reply = QMessageBox.question(self, 'Message',
            "Are you sure to quit?", QMessageBox.Yes | 
            QMessageBox.No, QMessageBox.No)

        if reply == QMessageBox.Yes:
if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()

Running the executable file from the dist folder in works perfectly just as the same way as you just run the script in the interpreter

I left the console option in the background so that if there’s an error I could see it when the program runs. However, you could get rid of the console by adding “–noconsole” option to pyinstaller.

pyinstaller --onefile --noconsole

Now that works so well, I want to see whether I could make a standalone file with a script that has PyQt5 and Matplotlib. Here’s the code I use to test this:

import sys
import PyQt5
from PyQt5.QtWidgets import QApplication, QMainWindow, QMenu, QVBoxLayout, \
   QSizePolicy, QMessageBox, QWidget, QPushButton, QListWidget, QDesktopWidget
from PyQt5.QtGui import QIcon
from PyQt5 import QtCore
import PIL
import tkinter
from tkinter import filedialog

from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure
import matplotlib.pyplot as plt

import random

class App(QMainWindow):

    def __init__(self):
        self.left = 10 = 10
        self.title = 'PyQt5 matplotlib example'
        self.setFixedSize(640, 700)

    def location_on_the_screen(self):
        ag = QDesktopWidget().availableGeometry()
        sg = QDesktopWidget().screenGeometry()

        widget = self.geometry()
        #x = ag.width() - widget.width()
        #y = 2 * ag.height() - sg.height() - widget.height()
        x = sg.width() - widget.width()
        y = 2 * ag.height() - sg.height() - widget.height()
        self.move(x, y)

    def initUI(self):
        #self.setGeometry(self.left,, self.width, self.height)

        m = PlotCanvas(self, width=5, height=4)

        button = QPushButton('PyQt5 button', self)
        button.setToolTip('This s an example button')

        button2 = QPushButton('Plot', self)
        button2.setToolTip('Plot Data')

        listBox = QListWidget(self)

class PlotCanvas(FigureCanvas):

    def __init__(self, parent=None, width=5, height=4, dpi=100):
        fig = Figure(figsize=(width, height), dpi=dpi)
        self.axes = fig.add_subplot(111)

        FigureCanvas.__init__(self, fig)


    def plot(self):
        data = [random.random() for i in range(25)]
        ax = self.figure.add_subplot(111)
        ax.plot(data, 'r-')
        ax.set_title('PyQt Matplotlib Example')

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()

When creating an exe for this script using Pyinstaller I see a lot of warnings but no errors. I even got an exe. However, when I ran the exe I got an error:
ModuleNotFoundError: No module named ‘numpy.core._dtype_ctypes’

I did have Numpy correctly installed using pip and I have version 1.16.0 and it’s supposedly the most up-to-date version.

After Googling the error, I found that the problem was indeed Numpy itself and the issue is fixed if I have version 1.16.1. However, doing pip install numpy doesn’t work since it insists that 1.16.0 was the up-to-date version.

Therefore, I have to force the install of 1.16.1 Numpy

pip install numpy==1.16.1

This forces the new version of Numpy to be installed. I tried to create the exe file again using Pyinstaller. Again, the exe creation went just fine as before. I wasn’t sure whether this would work or not, but to my surprise when running the exe file I have a working program!

I was quite pleased with the result. Now I could move forward with using Pyinstaller to make a standalone program.

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