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Help needed to run some code!!!!


Hi

How can I execute "from devicesEmbedded import *" after this: "print("Device added to list")" in GUI.py because currently if I have the import added at the top of GUI.py file it always executes first before the GUI.py file is executed. I want the devicesEmbedded.py to execute after GUI.py has executed first.

Thanks
Spencer

GUI.py 

import logging 
from datetime import timedelta 
import time 
from thespian.actors import * 
from transitions import Machine 
import paho.mqtt.client as mqtt 
import importlib 
import os 
import os.path 
import sys 
from PyQt5.QtWidgets import * 
from PyQt5.QtCore import * 
from PyQt5 import QtWidgets, uic 
from mqtt import * 
# from devicesEmbedded import * 
import json 

class MainWindow(QtWidgets.QMainWindow): 
    def __init__(self,parent = None): 
        QMainWindow.__init__(self) 
        super(MainWindow, self).__init__(parent) 
        self.mdi = QMdiArea() 
        self.setCentralWidget(self.mdi) 

        self.setMinimumSize(QSize(800, 600)) 
        self.setWindowTitle("PyQt button example - pythonprogramminglanguage.com") 

        pybutton = QPushButton('Add device', self) 

        pybutton.clicked.connect(self.importbutton) 

        pybutton.move(100, 400) 
        pybutton.resize(150, 32) 

        self.textbox = QLineEdit(self) 
        self.textbox.move(100,350) 
        self.textbox.resize(100, 32) 
        
        self.fileName_UI = "" 

    def importbutton(self): 
        self.fileName_UI = self.textbox.text() 
        self.loadGUI() 

    def getGUIFilename(self): 
        return self.fileName_UI 

    def loadGUI(self): 
        print("Searching file", self.fileName_UI)       
        try: 
            module = __import__(self.fileName_UI) 
            my_class = getattr(module, "SubWindow") 

            sub = QMdiSubWindow() 

            sub.setWidget(my_class()) 
            sub.setWindowTitle("New GUI:  " + self.fileName_UI) 
            self.mdi.addSubWindow(sub) 
            sub.show() 

            print("creating new instance " + self.fileName_UI) 
            client = device("Device") 
            client.run() 

            client.loop_start()  # start the loop 
            # device_message = self.fileName_UI 
            time.sleep(2) 
            print("Subscribing to topic", "microscope/light_sheet_microscope/UI") 
            client.subscribe("microscope/light_sheet_microscope/UI") 
            print("Publishing message to topic", "microscope/light_sheet_microscope/UI/list_of_devices") 
            client.publish("microscope/light_sheet_microscope/UI/list_of_devices", json.dumps({"type": "device", "payload":{"name": self.fileName_UI, "cmd": "adding device"}}, indent=2)) 
            time.sleep(1)  # wait 
            client.loop_stop()  # stop the loop 
            print("Device added" + "\n") 

            client.run() 
            client.loop_start() 
            time.sleep(2) 
            print("Subscribing to topic", "microscope/light_sheet_microscope/UI/list_of_devices") 
            client.subscribe("microscope/light_sheet_microscope/UI/list_of_devices") 
            print("Publishing message to topic", "microscope/light_sheet_microscope/UI/list_of_devices") 
            client.publish("microscope/light_sheet_microscope/UI/list_of_devices", self.fileName_UI + " added to device list") 
            time.sleep(1) 
            client.loop_stop() 

            listofdevices = [] 
            listofdevices.append(self.fileName_UI) 
            with open("list_of_devices.txt", "a+") as myfile: 
                for item in listofdevices: 
                    myfile.write(item + ",") 
                    
                    
                    print(item) 
            print(listofdevices) 
            print("Device added to list") 
        except: 
            print("creating new instance " + self.fileName_UI) 
            client = device("Device") 
            client.run() 

            client.loop_start()  # start the loop 
            device_message = self.fileName_UI 
            time.sleep(2) 
            print("Subscribing to topic", "microscope/light_sheet_microscope/UI") 
            client.subscribe("microscope/light_sheet_microscope/UI") 
            print("Publishing message to topic", "microscope/light_sheet_microscope/UI") 
            client.publish("microscope/light_sheet_microscope/UI", json.dumps({"type": "device", "payload":{"name": self.fileName_UI}}, indent=2)) 
            time.sleep(2)  # wait 
            client.loop_stop()  # stop the loop 
            print(device_message + ".py " + "file doesn't exist") 
            print("Device not added") 
if __name__ == "__main__": 
    app = QApplication(sys.argv) 
    mainWin = MainWindow() 
    a = mainWin.show() 
    try: 
        mainWin.show() 
        os.remove("list_of_devices.txt") 
        print("Awaiting devices to be launched") 
    except: 
        print("Awaiting devices to be launched") 
    publishedMessage = mainWin.getGUIFilename() 
    sys.exit(app.exec_()) 

devicesEmbedded.py: 

import random 
import asyncio 
from actorio import Actor, Message, DataMessage, ask, EndMainLoop, Reference 
from mqtt import * 
# from GUI import * 

client = device("Device") 
client.run() 
client.loop_start() 
time.sleep(1) 

print("Subscribing to topic", "microscope/light_sheet_microscope/UI/list_of_devices") 
client.subscribe("microscope/light_sheet_microscope/UI/list_of_devices") 
client.loop_stop()  # stop the loop 
                  
def readFile(fname): 
        try: 
                with open(fname, "r") as f: 
                        for item in f: 
                                print(item) 
        except: 
                print("No devices added yet") 
readFile("list_of_devices.txt") 

mqtt.py 

import logging 
from datetime import timedelta 
import time 
from thespian.actors import * 
from transitions import Machine 
import paho.mqtt.client as mqtt 
import importlib 
import os.path 
import sys 
from PyQt5.QtWidgets import * 
from PyQt5.QtCore import * 
from PyQt5 import QtWidgets, uic 

class device(mqtt.Client): 
    def on_connect(self, mqttc, obj, flags, rc): 
        if rc == 0: 
            print("Connected to broker") 
        else: 
            print("Connection failed") 

        # mqttc.subscribe("microscope/light_sheet_microscope/UI") 

    def on_message(self, mqttc, userdata, message): 
        msg = str(message.payload.decode("utf-8")) 
        print("message recieved= " + msg) 
        # print("File which you want to import(with .py extension)") 
        print("message topic=", message.topic) 
        print("message qos=", message.qos) 
        print("message retain flag=", message.retain) 

    def run(self): 
        self.connect("broker.hivemq.com", 1883, 60) 

Thanks