On Monday, 2 September 2019 06:02:58 UTC+10, Spencer Du wrote:
> Hi
>
> I have code for GUI and MQTT. In GUI.py I have "def loadGUI" which loads up a
> GUI file if the file exists in current directory. I want to add the file name
> to a list when a file is imported and for each subsequent file that is
> imported I want the file name to be imported to the same list and print the
> list or create a new list but with the imported file named added to list
> which has the existing file names that have already been imported. I was
> wondering how I do this. By the way run GUI.py to test this and test1.py and
> test2.py are the files which can be used to import GUI .
>
> 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.path
> import sys
> from PyQt5.QtWidgets import *
> from PyQt5.QtCore import *
> from PyQt5 import QtWidgets, uic
> from mqtt 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")
> client.publish("microscope/light_sheet_microscope/UI",
> 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")
> listofdevice = []
> listofdevice.append(self.fileName_UI)
> print(listofdevice)
> 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()
> mainWin.show()
> publishedMessage = mainWin.getGUIFilename()
> sys.exit(app.exec_())
>
> 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)
>
> test1.py
>
> from PyQt5 import QtCore, QtGui, QtWidgets
> import sys
> from PyQt5.QtWidgets import *
> from PyQt5.QtCore import *
> from PyQt5 import QtWidgets, uic
> from mqtt import *
>
> class SubWindow(QWidget):
> def __init__(self, parent = None):
> super(SubWindow, self).__init__(parent)
> self.setMinimumSize(QSize(300, 200))
> label = QLabel("Laser", self)
>
> self.modeButton = QtWidgets.QPushButton("Click me",self)
> self.modeButton.setGeometry(QtCore.QRect(10, 40, 81, 23))
> self.modeButton.setObjectName("Turn on")
> self.modeButton.clicked.connect(self.modFun)
>
> def modFun(self):
> print("creating new instance " + "Laser")
> client = device("Laser")
> client.run()
>
> client.loop_start() # start the loop
> device_message = "ON"
> 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",
> device_message)
> time.sleep(2) # wait
> client.loop_stop() # stop the loop
>
> def closeEvent(self, event):
> self.close()
>
> test2.py
>
> from PyQt5 import QtCore, QtGui, QtWidgets
> import sys
> from PyQt5.QtWidgets import *
> from PyQt5.QtCore import *
> from PyQt5 import QtWidgets, uic
>
> class SubWindow(QWidget):
> def __init__(self, parent = None):
> super(SubWindow, self).__init__(parent)
> self.setMinimumSize(QSize(300, 250))
> label = QLabel("Sub Window", self)
>
> self.modeButton = QtWidgets.QPushButton("Click me",self)
> self.modeButton.setGeometry(QtCore.QRect(10, 40, 81, 23))
>
> self.modeButton.clicked.connect(self.modFun)
>
>
>
> def modFun(self):
> print("Hello there i'm Click me")
>
> def closeEvent(self, event):
> self.close()
>
> Thanks.
list_of_file_name = []
my_file = getGUIFilename()
list.append(my_file)
Sayth
--
https://mail.python.org/mailman/listinfo/python-list
