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Expanding a frame into an expanding window
by Phil March 26, 2024

March 26, 2024

Thank you for reading this. I've created a custom widget that I'm importing into an app. The app includes 3 frame classes including the imported custom widget class. The widgets on those frames all use the grid method. When the app window is expanded the frames expand and frame's widgets move except for the frame that uses the imported class. That frame expands but the widgets on that frame remain in place. So there must be a problem with the custom widget class. The following are 2 simplified versions of the custom widget class to illustrate the problem. The version that uses the pack method does expand correctly but, of course, the two widgets are under each other rather than beside each other. The frame that uses the imported class also expands but the two widgets do not move. import tkinter as tk class SimpleEntry(tk.Frame): def __init__(self, parent, bg_colour="light blue"): # default colour is light blue super().__init__(parent, bg=bg_colour) self.enter_label = tk.Label(self, text="enter a number") self.number_enter = tk.Entry(self) self.enter_label.grid(row=0, column=0, padx=5, pady=5, sticky="nsew") self.number_enter.grid(row=0, column=1, padx=5, pady=5, sticky="nsew") ''' import tkinter as tk class SimpleEntry(tk.Frame): def __init__(self, parent, bg_colour="light blue"): super().__init__(parent, bg=bg_colour) self.enter_label = tk.Label(self, text="enter a number") self.number_enter = tk.Entry(self) self.enter_label.pack(expand=True) self.number_enter.pack(expand=True) ''' I've spent all day on this and all I've achieved is a headache. -- Regards, Phil

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Thank you for your review and assistance
by Jonathan Wilson March 25, 2024

March 25, 2024

Hello. I am getting an error in the beginning of my python script and it is referring to this line: newDBFileName = today.strftime(.format(today.month, today.day)) + ' ' ^ SyntaxError: invalid syntax Can someone tell me what the invalid syntax is here for this line? Appreciate any help you can give. (new python coder) Best, Jonathan

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Ubale to install Mediapipe
by aayushshah342＠gmail.com March 23, 2024

March 23, 2024

Unable to install mediapipe library on python version 3.12 Please help

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I need help with Django
by Iwuala Chibueze March 21, 2024

March 21, 2024

Dear Sir/Madam,I need complete details of running a inventory website with python Django. Kind Regards Chibueze Yahoo Mail: Search, Organize, Conquer

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Patching os.environ
by Albert-Jan Roskam March 19, 2024

March 19, 2024

Hi, What is the correct way of patching a dict in a test fixture? Below, MyTest1 fails, while MyTest2 succeeds. I thought the two tests were equivalent! Thanks! Albert-Jan import os import unittest from unittest.mock import patch class MyTest1(unittest.TestCase): def setUp(self): patcher = patch.dict(os.environ, {"FOO": "bar"}, clear=True) self.addCleanup(patcher.stop) def test_bla1(self): # why does this test fail? self.assertEqual(os.environ.get("FOO"), "bar") class MyTest2(unittest.TestCase): @patch.dict(os.environ, {"FOO": "bar"}, clear=True) def test_bla2(self): self.assertEqual(os.environ.get("FOO"), "bar") if __name__ == "__main__": unittest.main()

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MTG: Introductions to PyQt and DataClasses
by dn March 17, 2024

March 17, 2024

The Auckland Branch of NZPUG meets this Wednesday, 20 March at 1830 NZDT (0530 UTC, midnight-ish Tue/Wed in American time-zones), for a virtual meeting. Part 1: Learn the basics of PyQt with code examples. Hannan Khan is currently consulting as a Data Scientist for the (US) National Oceanic and Atmospheric Administration. He holds a Bachelor's degree in Neuroscience as well as a Masters in Computer Science. As a keen member of the PySprings Users' Group (Colorado), his contribution is part of a collaboration between our two PUGs. Part 2: Why use Dataclasses? - will be the question asked, and answered, by yours truly. After surveying a number of groups, it seems most of us know that Dataclasses are available, but we don't use them - mostly because we haven't ascertained their place in our tool-box. By the end of this session you will, and will have good reason to use (or not) Dataclasses! Everyone is welcome from every location and any time-zone. The NZPUG Code of Conduct applies. JetBrains have kindly donated a door-prize. Our BigBlueButton web-conferencing instance is best accessed using Chromium, Brave, Vivaldi, Safari, etc, (rather than Firefox - for now). A head-set will facilitate asking questions but text-chat will be available. Please RSVP at https://www.meetup.com/nzpug-auckland/events/299764049/ See you there! =dn, Branch Leader

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Re: [Tutor] MTG: Introductions to PyQt and DataClasses
by dn March 17, 2024

March 17, 2024

On 18/03/24 10:02, Jim Schwartz wrote: > Actually, I have a sleep disorder that requires me to keep a constant sleep schedule. Thats why I asked. At a weekend meeting, discussion swirled around topics such as the best way to learn/work, how much work we should attempt in one sitting, could/should I 'do more', and similar. One of the valuable observations is that most of us would benefit by improving our sleep-schedule and ensuring we do sleep for sufficient time (probably longer than current habit). -- Regards, =dn

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Python question 4.8.2. Keyword Argument
by Desiree C .Thomas March 7, 2024

March 7, 2024

Hello there, I hope this reaches you well. So I am following this https://docs.python.org/3/tutorial/controlflow.html I'm on 4.8.2. Keyword Argument Following the example def parrot(voltage, state='a stiff', action='voom', type='Norwegian Blue'): print("-- This parrot wouldn't", action, end=' ') print("if you put", voltage, "volts through it.") print("-- Lovely plumage, the", type) print("-- It's", state, "!") So this is positional arguments parrot(1000) # 1 positional argument parrot(voltage=1000) # 1 keyword argument parrot(voltage=1000000, action='VOOOOOM') # 2 keyword arguments parrot(action='VOOOOOM', voltage=1000000) # 2 keyword arguments parrot('a million', 'bereft of life', 'jump') # 3 positional arguments parrot('a thousand', state='pushing up the daisies') 1. So I understand the parrot(1000) would just input into the required argument voltage 2. Parrot voltage=1000 also input into the required argument voltage 3. parrot(voltage=1000000, action='VOOOOOM') I can enter the requirement argument and skip one of the arguments to input into action. The other non stated arguments just use the default values. 4. parrot(action='VOOOOOM', voltage=1000000) Here I accepted that I can state on the arguments I want to filled in just as long as the requirement argument is inputted. I also accepted that the requirement argument doesn't need to be declare first either. 5. parrot('a million', 'bereft of life', 'jump') The requirement argument was filled and the remaining two arguments were inputted in the respective order of the functions 6. parrot('a thousand', state='pushing up the daisies') I have accepted that the requirement argument was assumed to the first argument and accept to be 'a thousand' and the declared argument was input Please feel free of my understanding so far. So continuing parrot() The requirement argument isn't inputted therefore error. parrot(voltage=5.0, 'dead') This is the error I get: SyntaxError: positional argument follows keyword argument on line 10 >From my understanding, I thought the voltage should accept voltage to be 5.0 and update state into 'dead'? Can I get an explaination for this error. Thanks Desiree Cortez-Thomas

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Running Command Prompt In Python
by Am Ra Feb. 29, 2024

Feb. 29, 2024

Hi, I am trying to activate and run command prompt in python but I am stuck in one section of the code. Below I will explain what I have done so far and what issue I am dealing with. Importing os, and using os.system to connect to Command Prompt. [image: image.png] Then, dmel922.exe will be activated to generate an empty csv file from a raw dataset. [image: image.png] Up to here it is working as it is supposed to. However, it goes on a pause and not adding any data to the empty csv file because it is waiting on the user input which is “Enter y to Continue”. As we see in the picture below, the Command Prompt is asking the user to press y to continue. As soon as, I press y in the Command Prompt it will continue and finish the task. [image: image.png] I just cannot figure out how to write a code in python to answer that “Enter y to Continue” prompt or bypass that so that the system continues and finishes its task. Please advise. Thank you very much. Sincerely, Mike

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file accessibility across directories?
by James Hartley Feb. 29, 2024

Feb. 29, 2024

I am having issues with accessing files across different directories. The file structure I am using is simple: +-project | +- .git +-src | | | +- foo.py | +- bar.py | +- tests | | | +- test_foo.py | +- utils | +- baz.py Test files within project/tests reference classes successfully in foo.py through Pytest as: from src.foo import Foo Pytest is actually executed from the ./project directory successfully as: python -m pytest -v tests/test_foo.py baz.py had been in the src directory, where it successfully referenced class Foo as: from foo import Foo Now baz.py has been moved to utils/baz.py. I would think that this would require the import statement to changed to: from src.foo import Foo ...but I receive a "ModuleNotFoundError: No module named 'src'" error. I have tried adding an empty src/__init__.py file which doesn't change the error received. I always invoke the Python interpreter from the project directory. Always. The ./project/tests directory does not have a __init__.py file present. To date, I have not required this file anywhere, so I have not created it. Any insights shared which can help me resolve this simple issue would be appreciated.

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