🌐 Mailman 3 September 2019 - Python-list - python.org

Help to understand the data structure
by Mohan L Sept. 27, 2019

Sept. 27, 2019

Hi All, I am using get_devices_list method from this module: https://github.com/Tufin/pytos/blob/master/pytos/securetrack/helpers.py. Here is my two like code and output looks like: https://pastebin.com/K9KBeqYL I am not able to manage to further loop the data to print below output: devicename1 10 devicename2 11 devicename3 12 I spend quit some time still not able to figure out how to parse. Can some one through some light on how to phrase it. -- Thanks & Regards Mohan L

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How to publish a message of the qspinbox value when the qspinbox sets the slider with corresponding value.
by Spencer Du Sept. 27, 2019

Sept. 27, 2019

Hi When the values of the spinboxes is set a message should be published from the GUI containing the value from the spinbox which then sets the qlabel with the value. After this if I close and reload the gui the widgets should be set with the values set from the previous time. When the embedded.py file closes/stops running the gui is reset to its default state when no spinbox and qlabel are set with values. First execute the embedded.py file. Enter 'laser' when 'devices to be activated' appears. Once this executed a publish and subscribe should happen and a laser actor python file starts which launches the laser device on the embedded.py file. Once this is complete launch GUI.py in a separate command line and click add device for the device in the combo box. Here are the files needed. embedded.py import paho.mqtt.client as mqtt from mqtt import * import os import time import json def start(): try: os.remove("list_of_devices_currently_active.txt") print("Awaiting devices to be activated") except: print("Awaiting devices to be activated") start() devices = list(map(str,input("Devices to be activated: ").split(","))) client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) 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": "system", "payload":{"name": devices, "cmd": "activating devices"}}, indent=2)) time.sleep(1) def active_devices(): for item in devices: device = (item + "Embedded") deviceImport = __import__(device) with open("list_of_devices_currently_active.txt", "a+") as myfile: for item in devices: myfile.write(item + "\n") active_devices() def readFile(fname): print("List of devices currently active:") try: with open(fname, "r") as f: for item in f: print(item.rstrip("\n")) except: print("No devices added yet") readFile("list_of_devices_currently_active.txt") client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/states") client.subscribe("microscope/light_sheet_microscope/UI/states") client.loop_forever() mqtt.py import logging import paho.mqtt.client as mqtt import json class device(mqtt.Client): def on_connect(self, mqtt, obj, flags, rc): pass def on_message(self, mqtt, userdata, message): m_decode = str(message.payload.decode("utf-8")) print("message recieved= " + m_decode) # 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) m_in = json.loads(m_decode) def run(self): self.connect("localhost", 1883, 60) GUI.py import paho.mqtt.client as mqtt import os import sys from PyQt5.QtWidgets import * from PyQt5.QtCore import * from PyQt5 import QtWidgets, uic from mqtt import * import json import time 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") client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/devices") client.subscribe("microscope/light_sheet_microscope/UI/devices") print("Publishing message to topic", "microscope/light_sheet_microscope/UI/devices") client.publish("microscope/light_sheet_microscope/UI/devices", json.dumps({"type": "system", "payload":{"cmd": "get all devices"}}, indent=2)) time.sleep(1) pybutton = QPushButton('Add device', self) pybutton.clicked.connect(self.importbutton) pybutton.move(100, 400) pybutton.resize(150, 32) self.combo = QComboBox(self) self.combo.move(100,350) self.combo.resize(100, 32) def readFile(fname): try: with open(fname, "r") as f: for item in f: self.combo.addItem(item) except: print("No devices active") readFile("list_of_devices_currently_active.txt") def importbutton(self): client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/add device") client.subscribe("microscope/light_sheet_microscope/UI/add device") print("Publishing message to topic", "microscope/light_sheet_microscope/UI/add device") client.publish("microscope/light_sheet_microscope/UI/add device", json.dumps({"type": "system", "payload":{"cmd": "init device panel"}}, indent=2)) time.sleep(1) client.loop_stop() self.fileName_UI = self.combo.currentText() self.loadGUI() print("Device panel initialised" + "\n") def loadGUI(self): module = __import__(self.fileName_UI.rstrip("\n")) my_class = getattr(module, "SubWindow") sub = QMdiSubWindow() sub.setWidget(my_class()) sub.setWindowTitle(self.fileName_UI) self.mdi.addSubWindow(sub) sub.show() if __name__ == "__main__": app = QApplication(sys.argv) mainWin = MainWindow() mainWin.show() # publishedMessage = mainWin.getGUIFilename() sys.exit(app.exec_()) laser.py from PyQt5 import QtCore, QtGui, QtWidgets, uic from PyQt5.QtWidgets import * from PyQt5.QtCore import * from laser2 import * from mqtt import * import json import time import sys class SubWindow(QtWidgets.QMainWindow): def __init__(self, parent = None): super(SubWindow, self).__init__(parent) self.setMinimumSize(QSize(379, 268)) self.ui = Ui_Laser() self.ui.setupUi(self) def main(): app = QtWidgets.QApplication(sys.argv) application = SubWindow() application.show() sys.exit(app.exec_()) if __name__ == "__main__": main() laser2.py from PyQt5 import QtCore, QtGui, QtWidgets class Ui_Laser(object): def setupUi(self, Laser): Laser.setObjectName("Laser") Laser.resize(379, 274) Laser.setMinimumSize(QtCore.QSize(379, 268)) self.centralwidget = QtWidgets.QWidget(Laser) self.centralwidget.setObjectName("centralwidget") self.gridLayoutWidget = QtWidgets.QWidget(self.centralwidget) self.gridLayoutWidget.setGeometry(QtCore.QRect(0, 70, 371, 181)) self.gridLayoutWidget.setObjectName("gridLayoutWidget") self.gridLayout = QtWidgets.QGridLayout(self.gridLayoutWidget) self.gridLayout.setContentsMargins(0, 0, 0, 0) self.gridLayout.setObjectName("gridLayout") self.spinBox_2 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_2.setMaximum(100) self.spinBox_2.setObjectName("spinBox_2") self.gridLayout.addWidget(self.spinBox_2, 1, 1, 1, 1) self.spinBox_7 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_7.setObjectName("spinBox_7") self.gridLayout.addWidget(self.spinBox_7, 1, 3, 1, 1) self.label_13 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_13.setObjectName("label_13") self.gridLayout.addWidget(self.label_13, 0, 5, 1, 1) self.label_11 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_11.setObjectName("label_11") self.gridLayout.addWidget(self.label_11, 0, 3, 1, 1) self.spinBox_4 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_4.setMaximum(100) self.spinBox_4.setObjectName("spinBox_4") self.gridLayout.addWidget(self.spinBox_4, 1, 4, 1, 1) self.spinBox_5 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_5.setMaximum(100) self.spinBox_5.setObjectName("spinBox_5") self.gridLayout.addWidget(self.spinBox_5, 1, 5, 1, 1) self.spinBox = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox.setMaximum(100) self.spinBox.setObjectName("spinBox") self.gridLayout.addWidget(self.spinBox, 1, 0, 1, 1) self.label_12 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_12.setObjectName("label_12") self.gridLayout.addWidget(self.label_12, 0, 4, 1, 1) self.label_14 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_14.setObjectName("label_14") self.gridLayout.addWidget(self.label_14, 0, 6, 1, 1) self.spinBox_6 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_6.setMaximum(100) self.spinBox_6.setObjectName("spinBox_6") self.gridLayout.addWidget(self.spinBox_6, 1, 6, 1, 1) self.label_10 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_10.setObjectName("label_10") self.gridLayout.addWidget(self.label_10, 0, 2, 1, 1) self.spinBox_3 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_3.setMaximum(100) self.spinBox_3.setObjectName("spinBox_3") self.gridLayout.addWidget(self.spinBox_3, 1, 2, 1, 1) self.label_9 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_9.setObjectName("label_9") self.gridLayout.addWidget(self.label_9, 0, 1, 1, 1) self.label_8 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_8.setObjectName("label_8") self.gridLayout.addWidget(self.label_8, 0, 0, 1, 1) - show quoted text - self.spinBox.valueChanged['int'].connect(self.hi) self.spinBox_2.valueChanged['int'].connect(self.label_9.setNum) self.spinBox_3.valueChanged['int'].connect(self.label_10.setNum) self.spinBox_7.valueChanged['int'].connect(self.label_11.setNum) self.spinBox_4.valueChanged['int'].connect(self.label_12.setNum) self.spinBox_5.valueChanged['int'].connect(self.label_13.setNum) self.spinBox_6.valueChanged['int'].connect(self.label_14.setNum) QtCore.QMetaObject.connectSlotsByName(Laser) def hi(self): self.spinBox.valueChanged['int'].connect(self.hi) def retranslateUi(self, Laser): _translate = QtCore.QCoreApplication.translate Laser.setWindowTitle(_translate("Laser", "MainWindow")) self.label_13.setText(_translate("Laser", " %")) self.label_11.setText(_translate("Laser", " %")) self.label_12.setText(_translate("Laser", " %")) self.label_14.setText(_translate("Laser", " %")) self.label_10.setText(_translate("Laser", " %")) self.label_9.setText(_translate("Laser", " %")) self.label_8.setText(_translate("Laser", " %")) self.pushButton.setText(_translate("Laser", "ON")) self.pushButton_2.setText(_translate("Laser", "ON")) self.pushButton_3.setText(_translate("Laser", "ON")) self.pushButton_4.setText(_translate("Laser", "ON")) self.pushButton_5.setText(_translate("Laser", "ON")) self.pushButton_6.setText(_translate("Laser", "ON")) self.pushButton_7.setText(_translate("Laser", "ON")) self.label.setText(_translate("Laser", "445nm")) self.label_2.setText(_translate("Laser", "488nm")) self.label_3.setText(_translate("Laser", "515nm")) self.label_4.setText(_translate("Laser", "561nm")) self.label_5.setText(_translate("Laser", "594nm")) self.label_6.setText(_translate("Laser", "638nm")) self.label_7.setText(_translate("Laser", "LED")) self.pushButton_8.setText(_translate("Laser", "ON")) if __name__ == "__main__": import sys app = QtWidgets.QApplication(sys.argv) Laser = QtWidgets.QMainWindow() ui = Ui_Laser() ui.setupUi(Laser) Laser.show() sys.exit(app.exec_()) laserEmbedded.py import random import asyncio from actorio import Actor, Message, DataMessage, ask, EndMainLoop, Reference class Laser(Actor): async def handle_message(self, message: Message): print("Laser") await asyncio.sleep(2) print("Unitialised") await asyncio.sleep(2) print("Initialising") await asyncio.sleep(2) print("Initialised") await asyncio.sleep(2) print("Configuring") await asyncio.sleep(2) print("Configured") await asyncio.sleep(2) await message.sender.tell(DataMessage(data="Hello World Im a laser!" +"\n", sender=self)) async def main(): # Let's create an instance of a Greeter actor and start it. async with Laser() as laser: # Then we'll just send it an empty message and wait for a response reply : DataMessage = await ask(laser, Message()) print(reply.data) asyncio.get_event_loop().run_until_complete(main()) Regards Spencer

1 0

How to publish a message of the qspinbox value when the qspinbox sets the slider with corresponding value.
by Spencer Du Sept. 27, 2019

Sept. 27, 2019

Hi When the values of the spinboxes is set a message should be published from the GUI containing the value from the spinbox which then sets the qlabel with the value. After this if I close and reload the gui the widgets should be set with the values set from the previous time. When the embedded.py file closes/stops running the gui is reset to its default state when no spinbox and qlabel are set with values. First execute the embedded.py file. Enter 'laser' when 'devices to be activated' appears. Once this executed a publish and subscribe should happen and a laser actor python file starts which launches the laser device on the embedded.py file. Once this is complete launch GUI.py in a separate command line and click add device for the device in the combo box. Here are the files needed. embedded.py import paho.mqtt.client as mqtt from mqtt import * import os import time import json def start(): try: os.remove("list_of_devices_currently_active.txt") print("Awaiting devices to be activated") except: print("Awaiting devices to be activated") start() devices = list(map(str,input("Devices to be activated: ").split(","))) client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) 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": "system", "payload":{"name": devices, "cmd": "activating devices"}}, indent=2)) time.sleep(1) def active_devices(): for item in devices: device = (item + "Embedded") deviceImport = __import__(device) with open("list_of_devices_currently_active.txt", "a+") as myfile: for item in devices: myfile.write(item + "\n") active_devices() def readFile(fname): print("List of devices currently active:") try: with open(fname, "r") as f: for item in f: print(item.rstrip("\n")) except: print("No devices added yet") readFile("list_of_devices_currently_active.txt") client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/states") client.subscribe("microscope/light_sheet_microscope/UI/states") client.loop_forever() mqtt.py import logging import paho.mqtt.client as mqtt import json class device(mqtt.Client): def on_connect(self, mqtt, obj, flags, rc): pass def on_message(self, mqtt, userdata, message): m_decode = str(message.payload.decode("utf-8")) print("message recieved= " + m_decode) # 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) m_in = json.loads(m_decode) def run(self): self.connect("localhost", 1883, 60) GUI.py import paho.mqtt.client as mqtt import os import sys from PyQt5.QtWidgets import * from PyQt5.QtCore import * from PyQt5 import QtWidgets, uic from mqtt import * import json import time 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") client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/devices") client.subscribe("microscope/light_sheet_microscope/UI/devices") print("Publishing message to topic", "microscope/light_sheet_microscope/UI/devices") client.publish("microscope/light_sheet_microscope/UI/devices", json.dumps({"type": "system", "payload":{"cmd": "get all devices"}}, indent=2)) time.sleep(1) pybutton = QPushButton('Add device', self) pybutton.clicked.connect(self.importbutton) pybutton.move(100, 400) pybutton.resize(150, 32) self.combo = QComboBox(self) self.combo.move(100,350) self.combo.resize(100, 32) def readFile(fname): try: with open(fname, "r") as f: for item in f: self.combo.addItem(item) except: print("No devices active") readFile("list_of_devices_currently_active.txt") def importbutton(self): client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/add device") client.subscribe("microscope/light_sheet_microscope/UI/add device") print("Publishing message to topic", "microscope/light_sheet_microscope/UI/add device") client.publish("microscope/light_sheet_microscope/UI/add device", json.dumps({"type": "system", "payload":{"cmd": "init device panel"}}, indent=2)) time.sleep(1) client.loop_stop() self.fileName_UI = self.combo.currentText() self.loadGUI() print("Device panel initialised" + "\n") def loadGUI(self): module = __import__(self.fileName_UI.rstrip("\n")) my_class = getattr(module, "SubWindow") sub = QMdiSubWindow() sub.setWidget(my_class()) sub.setWindowTitle(self.fileName_UI) self.mdi.addSubWindow(sub) sub.show() if __name__ == "__main__": app = QApplication(sys.argv) mainWin = MainWindow() mainWin.show() # publishedMessage = mainWin.getGUIFilename() sys.exit(app.exec_()) laser.py from PyQt5 import QtCore, QtGui, QtWidgets, uic from PyQt5.QtWidgets import * from PyQt5.QtCore import * from laser2 import * from mqtt import * import json import time import sys class SubWindow(QtWidgets.QMainWindow): def __init__(self, parent = None): super(SubWindow, self).__init__(parent) self.setMinimumSize(QSize(379, 268)) self.ui = Ui_Laser() self.ui.setupUi(self) def main(): app = QtWidgets.QApplication(sys.argv) application = SubWindow() application.show() sys.exit(app.exec_()) if __name__ == "__main__": main() laser2.py from PyQt5 import QtCore, QtGui, QtWidgets class Ui_Laser(object): def setupUi(self, Laser): Laser.setObjectName("Laser") Laser.resize(379, 274) Laser.setMinimumSize(QtCore.QSize(379, 268)) self.centralwidget = QtWidgets.QWidget(Laser) self.centralwidget.setObjectName("centralwidget") self.gridLayoutWidget = QtWidgets.QWidget(self.centralwidget) self.gridLayoutWidget.setGeometry(QtCore.QRect(0, 70, 371, 181)) self.gridLayoutWidget.setObjectName("gridLayoutWidget") self.gridLayout = QtWidgets.QGridLayout(self.gridLayoutWidget) self.gridLayout.setContentsMargins(0, 0, 0, 0) self.gridLayout.setObjectName("gridLayout") self.spinBox_2 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_2.setMaximum(100) self.spinBox_2.setObjectName("spinBox_2") self.gridLayout.addWidget(self.spinBox_2, 1, 1, 1, 1) self.spinBox_7 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_7.setObjectName("spinBox_7") self.gridLayout.addWidget(self.spinBox_7, 1, 3, 1, 1) self.label_13 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_13.setObjectName("label_13") self.gridLayout.addWidget(self.label_13, 0, 5, 1, 1) self.label_11 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_11.setObjectName("label_11") self.gridLayout.addWidget(self.label_11, 0, 3, 1, 1) self.spinBox_4 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_4.setMaximum(100) self.spinBox_4.setObjectName("spinBox_4") self.gridLayout.addWidget(self.spinBox_4, 1, 4, 1, 1) self.spinBox_5 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_5.setMaximum(100) self.spinBox_5.setObjectName("spinBox_5") self.gridLayout.addWidget(self.spinBox_5, 1, 5, 1, 1) self.spinBox = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox.setMaximum(100) self.spinBox.setObjectName("spinBox") self.gridLayout.addWidget(self.spinBox, 1, 0, 1, 1) self.label_12 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_12.setObjectName("label_12") self.gridLayout.addWidget(self.label_12, 0, 4, 1, 1) self.label_14 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_14.setObjectName("label_14") self.gridLayout.addWidget(self.label_14, 0, 6, 1, 1) self.spinBox_6 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_6.setMaximum(100) self.spinBox_6.setObjectName("spinBox_6") self.gridLayout.addWidget(self.spinBox_6, 1, 6, 1, 1) self.label_10 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_10.setObjectName("label_10") self.gridLayout.addWidget(self.label_10, 0, 2, 1, 1) self.spinBox_3 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_3.setMaximum(100) self.spinBox_3.setObjectName("spinBox_3") self.gridLayout.addWidget(self.spinBox_3, 1, 2, 1, 1) self.label_9 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_9.setObjectName("label_9") self.gridLayout.addWidget(self.label_9, 0, 1, 1, 1) self.label_8 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_8.setObjectName("label_8") self.gridLayout.addWidget(self.label_8, 0, 0, 1, 1) - show quoted text - self.spinBox.valueChanged['int'].connect(self.hi) self.spinBox_2.valueChanged['int'].connect(self.label_9.setNum) self.spinBox_3.valueChanged['int'].connect(self.label_10.setNum) self.spinBox_7.valueChanged['int'].connect(self.label_11.setNum) self.spinBox_4.valueChanged['int'].connect(self.label_12.setNum) self.spinBox_5.valueChanged['int'].connect(self.label_13.setNum) self.spinBox_6.valueChanged['int'].connect(self.label_14.setNum) QtCore.QMetaObject.connectSlotsByName(Laser) def hi(self): self.spinBox.valueChanged['int'].connect(self.hi) def retranslateUi(self, Laser): _translate = QtCore.QCoreApplication.translate Laser.setWindowTitle(_translate("Laser", "MainWindow")) self.label_13.setText(_translate("Laser", " %")) self.label_11.setText(_translate("Laser", " %")) self.label_12.setText(_translate("Laser", " %")) self.label_14.setText(_translate("Laser", " %")) self.label_10.setText(_translate("Laser", " %")) self.label_9.setText(_translate("Laser", " %")) self.label_8.setText(_translate("Laser", " %")) self.pushButton.setText(_translate("Laser", "ON")) self.pushButton_2.setText(_translate("Laser", "ON")) self.pushButton_3.setText(_translate("Laser", "ON")) self.pushButton_4.setText(_translate("Laser", "ON")) self.pushButton_5.setText(_translate("Laser", "ON")) self.pushButton_6.setText(_translate("Laser", "ON")) self.pushButton_7.setText(_translate("Laser", "ON")) self.label.setText(_translate("Laser", "445nm")) self.label_2.setText(_translate("Laser", "488nm")) self.label_3.setText(_translate("Laser", "515nm")) self.label_4.setText(_translate("Laser", "561nm")) self.label_5.setText(_translate("Laser", "594nm")) self.label_6.setText(_translate("Laser", "638nm")) self.label_7.setText(_translate("Laser", "LED")) self.pushButton_8.setText(_translate("Laser", "ON")) if __name__ == "__main__": import sys app = QtWidgets.QApplication(sys.argv) Laser = QtWidgets.QMainWindow() ui = Ui_Laser() ui.setupUi(Laser) Laser.show() sys.exit(app.exec_()) laserEmbedded.py import random import asyncio from actorio import Actor, Message, DataMessage, ask, EndMainLoop, Reference class Laser(Actor): async def handle_message(self, message: Message): print("Laser") await asyncio.sleep(2) print("Unitialised") await asyncio.sleep(2) print("Initialising") await asyncio.sleep(2) print("Initialised") await asyncio.sleep(2) print("Configuring") await asyncio.sleep(2) print("Configured") await asyncio.sleep(2) await message.sender.tell(DataMessage(data="Hello World Im a laser!" +"\n", sender=self)) async def main(): # Let's create an instance of a Greeter actor and start it. async with Laser() as laser: # Then we'll just send it an empty message and wait for a response reply : DataMessage = await ask(laser, Message()) print(reply.data) asyncio.get_event_loop().run_until_complete(main()) Regards Spencer

1 0

How to publish a message of the qspinbox value when the qspinbox sets the slider with corresponding value.
by Spencer Du Sept. 27, 2019

Sept. 27, 2019

Hi When the values of the spinboxes is set a message should be published from the GUI containing the value from the spinbox which then sets the qlabel with the value. After this if I close and reload the gui the widgets should be set with the values set from the previous time. When the embedded.py file closes/stops running the gui is reset to its default state when no spinbox and qlabel are set with values. First execute the embedded.py file. Enter 'laser' when 'devices to be activated' appears. Once this executed a publish and subscribe should happen and a laser actor python file starts which launches the laser device on the embedded.py file. Once this is complete launch GUI.py in a separate command line and click add device for the device in the combo box. Here are the files needed. embedded.py import paho.mqtt.client as mqtt from mqtt import * import os import time import json def start(): try: os.remove("list_of_devices_currently_active.txt") print("Awaiting devices to be activated") except: print("Awaiting devices to be activated") start() devices = list(map(str,input("Devices to be activated: ").split(","))) client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) 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": "system", "payload":{"name": devices, "cmd": "activating devices"}}, indent=2)) time.sleep(1) def active_devices(): for item in devices: device = (item + "Embedded") deviceImport = __import__(device) with open("list_of_devices_currently_active.txt", "a+") as myfile: for item in devices: myfile.write(item + "\n") active_devices() def readFile(fname): print("List of devices currently active:") try: with open(fname, "r") as f: for item in f: print(item.rstrip("\n")) except: print("No devices added yet") readFile("list_of_devices_currently_active.txt") client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/states") client.subscribe("microscope/light_sheet_microscope/UI/states") client.loop_forever() mqtt.py import logging import paho.mqtt.client as mqtt import json class device(mqtt.Client): def on_connect(self, mqtt, obj, flags, rc): pass def on_message(self, mqtt, userdata, message): m_decode = str(message.payload.decode("utf-8")) print("message recieved= " + m_decode) # 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) m_in = json.loads(m_decode) def run(self): self.connect("localhost", 1883, 60) GUI.py import paho.mqtt.client as mqtt import os import sys from PyQt5.QtWidgets import * from PyQt5.QtCore import * from PyQt5 import QtWidgets, uic from mqtt import * import json import time 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") client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/devices") client.subscribe("microscope/light_sheet_microscope/UI/devices") print("Publishing message to topic", "microscope/light_sheet_microscope/UI/devices") client.publish("microscope/light_sheet_microscope/UI/devices", json.dumps({"type": "system", "payload":{"cmd": "get all devices"}}, indent=2)) time.sleep(1) pybutton = QPushButton('Add device', self) pybutton.clicked.connect(self.importbutton) pybutton.move(100, 400) pybutton.resize(150, 32) self.combo = QComboBox(self) self.combo.move(100,350) self.combo.resize(100, 32) def readFile(fname): try: with open(fname, "r") as f: for item in f: self.combo.addItem(item) except: print("No devices active") readFile("list_of_devices_currently_active.txt") def importbutton(self): client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/add device") client.subscribe("microscope/light_sheet_microscope/UI/add device") print("Publishing message to topic", "microscope/light_sheet_microscope/UI/add device") client.publish("microscope/light_sheet_microscope/UI/add device", json.dumps({"type": "system", "payload":{"cmd": "init device panel"}}, indent=2)) time.sleep(1) client.loop_stop() self.fileName_UI = self.combo.currentText() self.loadGUI() print("Device panel initialised" + "\n") def loadGUI(self): module = __import__(self.fileName_UI.rstrip("\n")) my_class = getattr(module, "SubWindow") sub = QMdiSubWindow() sub.setWidget(my_class()) sub.setWindowTitle(self.fileName_UI) self.mdi.addSubWindow(sub) sub.show() if __name__ == "__main__": app = QApplication(sys.argv) mainWin = MainWindow() mainWin.show() # publishedMessage = mainWin.getGUIFilename() sys.exit(app.exec_()) laser.py from PyQt5 import QtCore, QtGui, QtWidgets, uic from PyQt5.QtWidgets import * from PyQt5.QtCore import * from laser2 import * from mqtt import * import json import time import sys class SubWindow(QtWidgets.QMainWindow): def __init__(self, parent = None): super(SubWindow, self).__init__(parent) self.setMinimumSize(QSize(379, 268)) self.ui = Ui_Laser() self.ui.setupUi(self) def main(): app = QtWidgets.QApplication(sys.argv) application = SubWindow() application.show() sys.exit(app.exec_()) if __name__ == "__main__": main() laser2.py from PyQt5 import QtCore, QtGui, QtWidgets class Ui_Laser(object): def setupUi(self, Laser): Laser.setObjectName("Laser") Laser.resize(379, 274) Laser.setMinimumSize(QtCore.QSize(379, 268)) self.centralwidget = QtWidgets.QWidget(Laser) self.centralwidget.setObjectName("centralwidget") self.gridLayoutWidget = QtWidgets.QWidget(self.centralwidget) self.gridLayoutWidget.setGeometry(QtCore.QRect(0, 70, 371, 181)) self.gridLayoutWidget.setObjectName("gridLayoutWidget") self.gridLayout = QtWidgets.QGridLayout(self.gridLayoutWidget) self.gridLayout.setContentsMargins(0, 0, 0, 0) self.gridLayout.setObjectName("gridLayout") self.spinBox_2 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_2.setMaximum(100) self.spinBox_2.setObjectName("spinBox_2") self.gridLayout.addWidget(self.spinBox_2, 1, 1, 1, 1) self.spinBox_7 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_7.setObjectName("spinBox_7") self.gridLayout.addWidget(self.spinBox_7, 1, 3, 1, 1) self.label_13 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_13.setObjectName("label_13") self.gridLayout.addWidget(self.label_13, 0, 5, 1, 1) self.label_11 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_11.setObjectName("label_11") self.gridLayout.addWidget(self.label_11, 0, 3, 1, 1) self.spinBox_4 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_4.setMaximum(100) self.spinBox_4.setObjectName("spinBox_4") self.gridLayout.addWidget(self.spinBox_4, 1, 4, 1, 1) self.spinBox_5 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_5.setMaximum(100) self.spinBox_5.setObjectName("spinBox_5") self.gridLayout.addWidget(self.spinBox_5, 1, 5, 1, 1) self.spinBox = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox.setMaximum(100) self.spinBox.setObjectName("spinBox") self.gridLayout.addWidget(self.spinBox, 1, 0, 1, 1) self.label_12 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_12.setObjectName("label_12") self.gridLayout.addWidget(self.label_12, 0, 4, 1, 1) self.label_14 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_14.setObjectName("label_14") self.gridLayout.addWidget(self.label_14, 0, 6, 1, 1) self.spinBox_6 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_6.setMaximum(100) self.spinBox_6.setObjectName("spinBox_6") self.gridLayout.addWidget(self.spinBox_6, 1, 6, 1, 1) self.label_10 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_10.setObjectName("label_10") self.gridLayout.addWidget(self.label_10, 0, 2, 1, 1) self.spinBox_3 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_3.setMaximum(100) self.spinBox_3.setObjectName("spinBox_3") self.gridLayout.addWidget(self.spinBox_3, 1, 2, 1, 1) self.label_9 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_9.setObjectName("label_9") self.gridLayout.addWidget(self.label_9, 0, 1, 1, 1) self.label_8 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_8.setObjectName("label_8") self.gridLayout.addWidget(self.label_8, 0, 0, 1, 1) - show quoted text - self.spinBox.valueChanged['int'].connect(self.hi) self.spinBox_2.valueChanged['int'].connect(self.label_9.setNum) self.spinBox_3.valueChanged['int'].connect(self.label_10.setNum) self.spinBox_7.valueChanged['int'].connect(self.label_11.setNum) self.spinBox_4.valueChanged['int'].connect(self.label_12.setNum) self.spinBox_5.valueChanged['int'].connect(self.label_13.setNum) self.spinBox_6.valueChanged['int'].connect(self.label_14.setNum) QtCore.QMetaObject.connectSlotsByName(Laser) def hi(self): self.spinBox.valueChanged['int'].connect(self.hi) def retranslateUi(self, Laser): _translate = QtCore.QCoreApplication.translate Laser.setWindowTitle(_translate("Laser", "MainWindow")) self.label_13.setText(_translate("Laser", " %")) self.label_11.setText(_translate("Laser", " %")) self.label_12.setText(_translate("Laser", " %")) self.label_14.setText(_translate("Laser", " %")) self.label_10.setText(_translate("Laser", " %")) self.label_9.setText(_translate("Laser", " %")) self.label_8.setText(_translate("Laser", " %")) self.pushButton.setText(_translate("Laser", "ON")) self.pushButton_2.setText(_translate("Laser", "ON")) self.pushButton_3.setText(_translate("Laser", "ON")) self.pushButton_4.setText(_translate("Laser", "ON")) self.pushButton_5.setText(_translate("Laser", "ON")) self.pushButton_6.setText(_translate("Laser", "ON")) self.pushButton_7.setText(_translate("Laser", "ON")) self.label.setText(_translate("Laser", "445nm")) self.label_2.setText(_translate("Laser", "488nm")) self.label_3.setText(_translate("Laser", "515nm")) self.label_4.setText(_translate("Laser", "561nm")) self.label_5.setText(_translate("Laser", "594nm")) self.label_6.setText(_translate("Laser", "638nm")) self.label_7.setText(_translate("Laser", "LED")) self.pushButton_8.setText(_translate("Laser", "ON")) if __name__ == "__main__": import sys app = QtWidgets.QApplication(sys.argv) Laser = QtWidgets.QMainWindow() ui = Ui_Laser() ui.setupUi(Laser) Laser.show() sys.exit(app.exec_()) laserEmbedded.py import random import asyncio from actorio import Actor, Message, DataMessage, ask, EndMainLoop, Reference class Laser(Actor): async def handle_message(self, message: Message): print("Laser") await asyncio.sleep(2) print("Unitialised") await asyncio.sleep(2) print("Initialising") await asyncio.sleep(2) print("Initialised") await asyncio.sleep(2) print("Configuring") await asyncio.sleep(2) print("Configured") await asyncio.sleep(2) await message.sender.tell(DataMessage(data="Hello World Im a laser!" +"\n", sender=self)) async def main(): # Let's create an instance of a Greeter actor and start it. async with Laser() as laser: # Then we'll just send it an empty message and wait for a response reply : DataMessage = await ask(laser, Message()) print(reply.data) asyncio.get_event_loop().run_until_complete(main()) Regards Spencer

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How to publish a message of the qspinbox value when the qspinbox sets the slider with corresponding value.
by Spencer Du Sept. 27, 2019

Sept. 27, 2019

Hi When the values of the spinboxes is set a message should be published from the GUI containing the value from the spinbox which then sets the qlabel with the value. After this if I close and reload the gui the widgets should be set with the values set from the previous time. When the embedded.py file closes/stops running the gui is reset to its default state when no spinbox and qlabel are set with values. First execute the embedded.py file. Enter 'laser' when 'devices to be activated' appears. Once this executed a publish and subscribe should happen and a laser actor python file starts which launches the laser device on the embedded.py file. Once this is complete launch GUI.py in a separate command line and click add device for the device in the combo box. Here are the files needed. embedded.py import paho.mqtt.client as mqtt from mqtt import * import os import time import json def start(): try: os.remove("list_of_devices_currently_active.txt") print("Awaiting devices to be activated") except: print("Awaiting devices to be activated") start() devices = list(map(str,input("Devices to be activated: ").split(","))) client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) 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": "system", "payload":{"name": devices, "cmd": "activating devices"}}, indent=2)) time.sleep(1) def active_devices(): for item in devices: device = (item + "Embedded") deviceImport = __import__(device) with open("list_of_devices_currently_active.txt", "a+") as myfile: for item in devices: myfile.write(item + "\n") active_devices() def readFile(fname): print("List of devices currently active:") try: with open(fname, "r") as f: for item in f: print(item.rstrip("\n")) except: print("No devices added yet") readFile("list_of_devices_currently_active.txt") client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/states") client.subscribe("microscope/light_sheet_microscope/UI/states") client.loop_forever() mqtt.py import logging import paho.mqtt.client as mqtt import json class device(mqtt.Client): def on_connect(self, mqtt, obj, flags, rc): pass def on_message(self, mqtt, userdata, message): m_decode = str(message.payload.decode("utf-8")) print("message recieved= " + m_decode) # 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) m_in = json.loads(m_decode) def run(self): self.connect("localhost", 1883, 60) GUI.py import paho.mqtt.client as mqtt import os import sys from PyQt5.QtWidgets import * from PyQt5.QtCore import * from PyQt5 import QtWidgets, uic from mqtt import * import json import time 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") client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/devices") client.subscribe("microscope/light_sheet_microscope/UI/devices") print("Publishing message to topic", "microscope/light_sheet_microscope/UI/devices") client.publish("microscope/light_sheet_microscope/UI/devices", json.dumps({"type": "system", "payload":{"cmd": "get all devices"}}, indent=2)) time.sleep(1) pybutton = QPushButton('Add device', self) pybutton.clicked.connect(self.importbutton) pybutton.move(100, 400) pybutton.resize(150, 32) self.combo = QComboBox(self) self.combo.move(100,350) self.combo.resize(100, 32) def readFile(fname): try: with open(fname, "r") as f: for item in f: self.combo.addItem(item) except: print("No devices active") readFile("list_of_devices_currently_active.txt") def importbutton(self): client = device() client.run() client.loop_start() print("Connected to broker") time.sleep(1) print("Subscribing to topic", "microscope/light_sheet_microscope/UI/add device") client.subscribe("microscope/light_sheet_microscope/UI/add device") print("Publishing message to topic", "microscope/light_sheet_microscope/UI/add device") client.publish("microscope/light_sheet_microscope/UI/add device", json.dumps({"type": "system", "payload":{"cmd": "init device panel"}}, indent=2)) time.sleep(1) client.loop_stop() self.fileName_UI = self.combo.currentText() self.loadGUI() print("Device panel initialised" + "\n") def loadGUI(self): module = __import__(self.fileName_UI.rstrip("\n")) my_class = getattr(module, "SubWindow") sub = QMdiSubWindow() sub.setWidget(my_class()) sub.setWindowTitle(self.fileName_UI) self.mdi.addSubWindow(sub) sub.show() if __name__ == "__main__": app = QApplication(sys.argv) mainWin = MainWindow() mainWin.show() # publishedMessage = mainWin.getGUIFilename() sys.exit(app.exec_()) laser.py from PyQt5 import QtCore, QtGui, QtWidgets, uic from PyQt5.QtWidgets import * from PyQt5.QtCore import * from laser2 import * from mqtt import * import json import time import sys class SubWindow(QtWidgets.QMainWindow): def __init__(self, parent = None): super(SubWindow, self).__init__(parent) self.setMinimumSize(QSize(379, 268)) self.ui = Ui_Laser() self.ui.setupUi(self) def main(): app = QtWidgets.QApplication(sys.argv) application = SubWindow() application.show() sys.exit(app.exec_()) if __name__ == "__main__": main() laser2.py from PyQt5 import QtCore, QtGui, QtWidgets class Ui_Laser(object): def setupUi(self, Laser): Laser.setObjectName("Laser") Laser.resize(379, 274) Laser.setMinimumSize(QtCore.QSize(379, 268)) self.centralwidget = QtWidgets.QWidget(Laser) self.centralwidget.setObjectName("centralwidget") self.gridLayoutWidget = QtWidgets.QWidget(self.centralwidget) self.gridLayoutWidget.setGeometry(QtCore.QRect(0, 70, 371, 181)) self.gridLayoutWidget.setObjectName("gridLayoutWidget") self.gridLayout = QtWidgets.QGridLayout(self.gridLayoutWidget) self.gridLayout.setContentsMargins(0, 0, 0, 0) self.gridLayout.setObjectName("gridLayout") self.spinBox_2 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_2.setMaximum(100) self.spinBox_2.setObjectName("spinBox_2") self.gridLayout.addWidget(self.spinBox_2, 1, 1, 1, 1) self.spinBox_7 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_7.setObjectName("spinBox_7") self.gridLayout.addWidget(self.spinBox_7, 1, 3, 1, 1) self.label_13 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_13.setObjectName("label_13") self.gridLayout.addWidget(self.label_13, 0, 5, 1, 1) self.label_11 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_11.setObjectName("label_11") self.gridLayout.addWidget(self.label_11, 0, 3, 1, 1) self.spinBox_4 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_4.setMaximum(100) self.spinBox_4.setObjectName("spinBox_4") self.gridLayout.addWidget(self.spinBox_4, 1, 4, 1, 1) self.spinBox_5 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_5.setMaximum(100) self.spinBox_5.setObjectName("spinBox_5") self.gridLayout.addWidget(self.spinBox_5, 1, 5, 1, 1) self.spinBox = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox.setMaximum(100) self.spinBox.setObjectName("spinBox") self.gridLayout.addWidget(self.spinBox, 1, 0, 1, 1) self.label_12 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_12.setObjectName("label_12") self.gridLayout.addWidget(self.label_12, 0, 4, 1, 1) self.label_14 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_14.setObjectName("label_14") self.gridLayout.addWidget(self.label_14, 0, 6, 1, 1) self.spinBox_6 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_6.setMaximum(100) self.spinBox_6.setObjectName("spinBox_6") self.gridLayout.addWidget(self.spinBox_6, 1, 6, 1, 1) self.label_10 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_10.setObjectName("label_10") self.gridLayout.addWidget(self.label_10, 0, 2, 1, 1) self.spinBox_3 = QtWidgets.QSpinBox(self.gridLayoutWidget) self.spinBox_3.setMaximum(100) self.spinBox_3.setObjectName("spinBox_3") self.gridLayout.addWidget(self.spinBox_3, 1, 2, 1, 1) self.label_9 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_9.setObjectName("label_9") self.gridLayout.addWidget(self.label_9, 0, 1, 1, 1) self.label_8 = QtWidgets.QLabel(self.gridLayoutWidget) self.label_8.setObjectName("label_8") self.gridLayout.addWidget(self.label_8, 0, 0, 1, 1) self.pushButton = QtWidgets.QPushButton(self.centralwidget) self.pushButton.setGeometry(QtCore.QRect(0, 50, 41, 19)) self.pushButton.setCheckable(True) self.pushButton.setObjectName("pushButton") self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_2.setGeometry(QtCore.QRect(50, 50, 41, 19)) self.pushButton_2.setCheckable(True) self.pushButton_2.setObjectName("pushButton_2") self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_3.setGeometry(QtCore.QRect(110, 50, 41, 19)) self.pushButton_3.setCheckable(True) self.pushButton_3.setObjectName("pushButton_3") self.pushButton_4 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_4.setGeometry(QtCore.QRect(160, 50, 41, 19)) self.pushButton_4.setCheckable(True) self.pushButton_4.setObjectName("pushButton_4") self.pushButton_5 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_5.setGeometry(QtCore.QRect(220, 50, 41, 19)) self.pushButton_5.setCheckable(True) self.pushButton_5.setObjectName("pushButton_5") self.pushButton_6 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_6.setGeometry(QtCore.QRect(270, 50, 41, 19)) self.pushButton_6.setCheckable(True) self.pushButton_6.setObjectName("pushButton_6") self.pushButton_7 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_7.setGeometry(QtCore.QRect(330, 50, 41, 19)) self.pushButton_7.setCheckable(True) self.pushButton_7.setObjectName("pushButton_7") self.label = QtWidgets.QLabel(self.centralwidget) self.label.setGeometry(QtCore.QRect(0, 40, 39, 11)) self.label.setObjectName("label") self.label_2 = QtWidgets.QLabel(self.centralwidget) self.label_2.setGeometry(QtCore.QRect(50, 40, 39, 11)) self.label_2.setObjectName("label_2") self.label_3 = QtWidgets.QLabel(self.centralwidget) self.label_3.setGeometry(QtCore.QRect(110, 40, 39, 11)) self.label_3.setObjectName("label_3") self.label_4 = QtWidgets.QLabel(self.centralwidget) self.label_4.setGeometry(QtCore.QRect(160, 40, 39, 11)) self.label_4.setObjectName("label_4") self.label_5 = QtWidgets.QLabel(self.centralwidget) self.label_5.setGeometry(QtCore.QRect(220, 40, 39, 11)) self.label_5.setObjectName("label_5") self.label_6 = QtWidgets.QLabel(self.centralwidget) self.label_6.setGeometry(QtCore.QRect(270, 40, 39, 11)) self.label_6.setObjectName("label_6") self.label_7 = QtWidgets.QLabel(self.centralwidget) self.label_7.setGeometry(QtCore.QRect(330, 40, 39, 11)) self.label_7.setObjectName("label_7") self.pushButton_8 = QtWidgets.QPushButton(self.centralwidget) self.pushButton_8.setGeometry(QtCore.QRect(10, 10, 62, 19)) self.pushButton_8.setCheckable(True) self.pushButton_8.setChecked(True) self.pushButton_8.setObjectName("pushButton_8") Laser.setCentralWidget(self.centralwidget) self.statusbar = QtWidgets.QStatusBar(Laser) self.statusbar.setObjectName("statusbar") Laser.setStatusBar(self.statusbar) self.retranslateUi(Laser) self.spinBox.valueChanged['int'].connect(self.hi) self.spinBox_2.valueChanged['int'].connect(self.label_9.setNum) self.spinBox_3.valueChanged['int'].connect(self.label_10.setNum) self.spinBox_7.valueChanged['int'].connect(self.label_11.setNum) self.spinBox_4.valueChanged['int'].connect(self.label_12.setNum) self.spinBox_5.valueChanged['int'].connect(self.label_13.setNum) self.spinBox_6.valueChanged['int'].connect(self.label_14.setNum) QtCore.QMetaObject.connectSlotsByName(Laser) def hi(self): self.spinBox.valueChanged['int'].connect(self.hi) def retranslateUi(self, Laser): _translate = QtCore.QCoreApplication.translate Laser.setWindowTitle(_translate("Laser", "MainWindow")) self.label_13.setText(_translate("Laser", " %")) self.label_11.setText(_translate("Laser", " %")) self.label_12.setText(_translate("Laser", " %")) self.label_14.setText(_translate("Laser", " %")) self.label_10.setText(_translate("Laser", " %")) self.label_9.setText(_translate("Laser", " %")) self.label_8.setText(_translate("Laser", " %")) self.pushButton.setText(_translate("Laser", "ON")) self.pushButton_2.setText(_translate("Laser", "ON")) self.pushButton_3.setText(_translate("Laser", "ON")) self.pushButton_4.setText(_translate("Laser", "ON")) self.pushButton_5.setText(_translate("Laser", "ON")) self.pushButton_6.setText(_translate("Laser", "ON")) self.pushButton_7.setText(_translate("Laser", "ON")) self.label.setText(_translate("Laser", "445nm")) self.label_2.setText(_translate("Laser", "488nm")) self.label_3.setText(_translate("Laser", "515nm")) self.label_4.setText(_translate("Laser", "561nm")) self.label_5.setText(_translate("Laser", "594nm")) self.label_6.setText(_translate("Laser", "638nm")) self.label_7.setText(_translate("Laser", "LED")) self.pushButton_8.setText(_translate("Laser", "ON")) if __name__ == "__main__": import sys app = QtWidgets.QApplication(sys.argv) Laser = QtWidgets.QMainWindow() ui = Ui_Laser() ui.setupUi(Laser) Laser.show() sys.exit(app.exec_()) laserEmbedded.py import random import asyncio from actorio import Actor, Message, DataMessage, ask, EndMainLoop, Reference class Laser(Actor): async def handle_message(self, message: Message): print("Laser") await asyncio.sleep(2) print("Unitialised") await asyncio.sleep(2) print("Initialising") await asyncio.sleep(2) print("Initialised") await asyncio.sleep(2) print("Configuring") await asyncio.sleep(2) print("Configured") await asyncio.sleep(2) await message.sender.tell(DataMessage(data="Hello World Im a laser!" +"\n", sender=self)) async def main(): # Let's create an instance of a Greeter actor and start it. async with Laser() as laser: # Then we'll just send it an empty message and wait for a response reply : DataMessage = await ask(laser, Message()) print(reply.data) asyncio.get_event_loop().run_until_complete(main()) Regards Spencer

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Re: NEWBIE: how to get text onto 2 lines on a 16x2 lcd display
by RobH Sept. 27, 2019

Sept. 27, 2019

On 27/09/2019 04:51, Dennis Lee Bieber wrote: > On Thu, 26 Sep 2019 23:04:15 +0100, RobH <rob(a)despammer.com> declaimed the > following: > > >>> >> As I said, I have downloaded the circuitpython chalcd files from the >> link using pip3 install, but after downloading I can't find any Adafruit >> folders on my pi zero. Doing a search for adafruit does not show anything. >> > > Did you also install the adafruit-blinka library? > > On a Beaglebone Black (my R-Pi is in the depth of major apt-get > update/upgrade cycle -- it feels like it's updating 50% of the OS given how > long it's been running, and that's on a 3B+ quadcore compared to the slower > single core BBB) I find blinka in > > debian@beaglebone:~$ sudo find / -iname "*blinka*" > /usr/local/lib/python3.5/dist-packages/Adafruit_Blinka-2.5.0-py3.5.egg-info > /usr/local/lib/python3.5/dist-packages/adafruit_blinka > debian@beaglebone:~$ > > Note: I ran the installs using "sudo pip3 ..." to make things act > globally; if you ran without sudo the files might be in a hidden directory > of the "pi" account. > > Okay, an incomplete search of the R-Pi, stealing cycles from the > upgrade processing) > > pi@raspberrypi:~$ sudo find / -iname "*adafruit*" > <SNIP> > /usr/local/lib/python3.7/dist-packages/Adafruit_PureIO > /usr/local/lib/python3.7/dist-packages/adafruit_blinka > /usr/local/lib/python3.7/dist-packages/Adafruit_PlatformDetect-1.3.4.dist-info > /usr/local/lib/python3.7/dist-packages/Adafruit_PureIO-0.2.3.dist-info > /usr/local/lib/python3.7/dist-packages/Adafruit_Blinka-2.5.1.dist-info > /usr/local/lib/python3.7/dist-packages/adafruit_platformdetect > > > Ok, the adafruit_character_lcd is in the same directory as yours, and so is Blinka and Purio. It seems to be a bit of a long path to type to get to the Adafruit_Charlcd directory, but is there a shortcut way of getting to the said directory. Thanks

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NameError: name 'msvcrt' is not defined
by Hongyi Zhao Sept. 27, 2019

Sept. 27, 2019

Hi, I use python on Debian, when running some python codes, I meet the following error: ----------- input_username.py", line 18, in read_input if msvcrt.kbhit(): NameError: name 'msvcrt' is not defined ------------ How to solve this issue?

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Re: NEWBIE: how to get text onto 2 lines on a 16x2 lcd display
by RobH Sept. 27, 2019

Sept. 27, 2019

On 26/09/2019 17:51, Dennis Lee Bieber wrote: > On Thu, 26 Sep 2019 11:58:15 +0100, RobH <rob(a)despammer.com> declaimed the > following: > > >> >> import Adafruit_CharLCD as LCD >> > > FYI: from Adafruit's download site: > https://github.com/adafruit/Adafruit_Python_CharLCD > """ > DEPRECATED LIBRARY. Adafruit Python CharLCD > > This library has been deprecated! We are leaving this up for historical and > research purposes but archiving the repository. > > We are now only supporting the use of our CircuitPython libraries for use > with Python. > > Check out this guide for info on using character LCDs with the > CircuitPython library: > https://learn.adafruit.com/character-lcds/python-circuitpython > """ > > >> # Print a two line message >> # lcd.message('Hello\nworld!') > > The example "two-line message" relies upon an embedded new-line > character. > >> lcd.message( "Hello" 1) > > This should produce a syntax error > > .message(string) only takes one argument -- a string to display. If said > string contains a newline, the library invokes a .set_cursor(col, row) to > move to the start of the next line (though line is limited to the defined > configuration maximum). > > If you want to manually position text, you'll need to invoke > .set_cursor(col, row) to do that, then invoke .message(string) to provide > the text. > > As mentioned, the library you are using is no longer supported by > AdaFruit. They would prefer you to install the "adafruit_blinka" library > which provides an interface to invoke CircuitPython libraries from boards > running full Python (CircuitPython runs on microcontrollers like AdaFruit's > Metro cards). (You'd then have to also install the CircuitPython libraries) > > https://learn.adafruit.com/circuitpython-on-raspberrypi-linux > (also applies to BeagleBone Black, as I recall) > > > Thanks for that, as I didn't realise it was deprecated, and have downloaded the circuitpython charLCD files. Also, I note on the site from the link for circuitpython, there is information and examples of how to put text on 2 lines, using the embedded newline character. As I said I am a newbie with python and I did not realise that this would do what I wanted, doh! # Print a two line message # lcd.message('Hello\nworld!'). Thanks again.

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Re: NEWBIE: how to get text onto 2 lines on a 16x2 lcd display
by RobH Sept. 26, 2019

Sept. 26, 2019

On 26/09/2019 15:22, Chris Angelico wrote: > On Thu, Sep 26, 2019 at 9:01 PM RobH <rob(a)despammer.com> wrote: >> >> import Adafruit_CharLCD as LCD >> >> >> # Raspberry Pi pin configuration: > > Ah, it's an RPi with Adafruit. That's the same library that my brother > uses. I don't know much of the details, but in case it's helpful, > here's the code that currently runs his subscriber appreciation board: > > https://github.com/stephenangelico/SubBoard/blob/master/lcd_char.py > > You might be able to borrow some ideas from that. > > ChrisA > Thanks and yes it is the adafruit char_lcd.py file I was using, but now a modded one to suit my needs. I see that lcd_char.py is a modded version as well, and I will download it to see what I can use from it. Thanks

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Re: CSV reader ignore brackets
by Piet van Oostrum Sept. 26, 2019

Sept. 26, 2019

Skip Montanaro <skip.montanaro(a)gmail.com> writes: > How about just replacing *$([^)]*)$* with *"\1"* in a wrapper class's > line reading method? (I think I have the re syntax approximately right.) > The csv reader will "just work". Again, nesting parens not allowed. > > Skip here is some working code: def PReader(csvfile): import re for line in csvfile: line = re.sub(r'$.*?$', '"\g<0>"', line) yield line import csv with open('testcsv.csv') as csvfile: reader = csv.reader(PReader(csvfile), quotechar='"') for row in reader: print(row) -- Piet van Oostrum <piet-l(a)vanoostrum.org> WWW: http://piet.vanoostrum.org/ PGP key: [8DAE142BE17999C4]

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