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

Re: IDLE missing !
by Piet van Oostrum Sept. 1, 2019

Sept. 1, 2019

Alex <alexezhilarasu(a)gmail.com> writes: > I tried downloading the 3.7.4 version of python and and then tried to > install tensorflow but found that TF is only available for version > 3.5.x. > Thus uninstalled the 3.7.4. version and tried downloading multiple 3.5.x > version while all of them downloaded but I couldn’d find the IDLE shell > with them. Well, on MacOS 10.13.6 (High Sierra) tensorflow 1.14.0 does install on Python 3.7.4, and it also runs. It does give some warnings about deprecations, however. There is also a version 2.0RC which installs and runs without warnings. -- Piet van Oostrum <piet-l(a)vanoostrum.org> WWW: http://piet.vanoostrum.org/ PGP key: [8DAE142BE17999C4]

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Re: Using exec with embedded python interpreter 3.7
by Eko palypse Sept. 1, 2019

Sept. 1, 2019

@MRAB, I'm building a notepad++ plugin which can execute the written code and if one writes help(os) it gets executed via exec(editor.getText()) and output redirected to the plugin console window. Sorry to you as well as I have also replied to you directly. Thank you

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Re: Using exec with embedded python interpreter 3.7
by Eko palypse Sept. 1, 2019

Sept. 1, 2019

Just saw, that I replied to you directly instead to python list, sorry. That did it, changed encoding from function to property and now I'm able to call help(object) Thank you.

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How to create list for stuff inside mqtt and GUI?.
by Spencer Du Sept. 1, 2019

Sept. 1, 2019

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. 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) Thanks.

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IDLE missing !
by Alex Sept. 1, 2019

Sept. 1, 2019

I tried downloading the 3.7.4 version of python and and then tried to install tensorflow but found that TF is only available for version 3.5.x. Thus uninstalled the 3.7.4. version and tried downloading multiple 3.5.x version while all of them downloaded but I couldn’d find the IDLE shell with them. They do get installed into the system but the IDLE is not installed. what should I do about it ? Regrards, Alex Sent from Mail for Windows 10

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Using exec with embedded python interpreter 3.7
by Eko palypse Sept. 1, 2019

Sept. 1, 2019

I've already sent this through mail yesterday but it doesn't appear here, maybe because of the help word in the content. Please execute in case it appears a second time. Hello, I'm creating a notepad++ plugin which hosts an embedded python interpreter by using cffi to build the dll. So far so good. One obstacle I've found is that I'm not able to use exec(help(object)) in order to get the wanted info from the object. The error I get is: Traceback (most recent call last): File "<init code for 'Python3Script'>", line 131, in run_code File "<string>", line 1, in <module> File "D:\...\Python\Python37_64\Lib\_sitebuiltins.py", line 103, in __call__ return pydoc.help(*args, **kwds) File "D:\...\Python\Python37_64\Lib\pydoc.py", line 1895, in __call__ self.help(request) File "D:\...\Python\Python37_64\Lib\pydoc.py", line 1954, in help else: doc(request, 'Help on %s:', output=self._output) File "D:\...\Python\Python37_64\Lib\pydoc.py", line 1674, in doc pager(render_doc(thing, title, forceload)) File "D:\...\Python\Python37_64\Lib\pydoc.py", line 1451, in pager pager(text) File "D:\...\Python\Python37_64\Lib\pydoc.py", line 1576, in plainpager sys.stdout.write(plain(_escape_stdout(text))) File "D:\...\Python\Python37_64\Lib\pydoc.py", line 1528, in _escape_stdout return text.encode(encoding, 'backslashreplace').decode(encoding) TypeError: encode() argument 1 must be str, not method If I encase the object with quotes then I do get the info that no documentation is found for that object. 1. It doesn't feel right to encase the object with quotes. I don't have to do this using the standard python interpreter shell. What did I miss? 2. If it is needed to use the encased way, why don't it show the help info? The object class contains the module, class and functions doc strings, what did I miss here? Thank you Eren

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'python' is not recognized as an internal or external command
by G Kishore Sept. 1, 2019

Sept. 1, 2019

Hi Team, I was installing python in my new windows 10 machine and cpuld able to access python from command window when the location is where I have installed python. The same I have tried to enter the command from Desktop location but "'python' is not recognized as an internal or external command," error is thrown. Done the path variable in the environmental variables as the location where python is installed. Thanks Kishore

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Python 3.7.4 on win 7
by Mohammad Arif Samana Sept. 1, 2019

Sept. 1, 2019

Dear sir, I am installing the above version of python on my pc with win7 as my operating system. But I am constantly receiving error messages. What could be the problem and remedy for that. Kindly update me as I am facing problems for my studies. Also brief me about Anaconda3. Its not installing on window 7, is there any bugs. Arif Samana

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Re: open, close
by Manfred Lotz Sept. 1, 2019

Sept. 1, 2019

On Sun, 1 Sep 2019 16:46:44 +0100 Barry <barry(a)barrys-emacs.org> wrote: > > On 31 Aug 2019, at 15:41, Manfred Lotz <ml_news(a)posteo.de> wrote: > > > > When you say COULD this sounds like it is a matter of luck. My > > thinking was that USUALLY the file will be closed after the > > statement because then the file handle goes out of scope. > > It all depends on the way any python implementation does its garbage > collection. The file is closed as a side effect of deleting the file > object to reclaiming the memory of the file object. > > At the start of python 3 people where suprised when files and other > resources where not released at the same time that python 2 released > them. > Thanks for this. Very interesting. -- Manfred

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``if var'' and ``if var is not None''
by Hongyi Zhao Sept. 1, 2019

Sept. 1, 2019

Hi, The following two forms are always equivalent: ``if var'' and ``if var is not None'' Regards

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