I’m trying to train a Random Forest to classify the species of a set of flowers from the iris dataset. However, the validation looks kind of weird to me, since it looks like the results are perfect, which is something I would not expect. Since I would like to perform a binary classification, I exclude f…
Why airflow is returning error while requesting Rest API?
I have a python code which is requesting a Rest API. The API has more than 5000+ pages so i tried to request it but always i am getting error at 2000th request. The error is: “df = pd.json_normalize(json_data[“items”]) KeyError: ‘items’” How can i solve this problem ? P.S. In loc…
A tkinter GUI with a resizable left panel: resizable arrow indicator appearance issue
I created this test code to simulate a Tk window with a left panel that is resizable. How it works: When the mouse pointer move over the ttk.Separator, a resizable arrow indicator will appear where the mouse pointer is. Pressing the left mouse button and moving the mouse pointer, the width of the left panel w…
How do I apply my function to all the values within a JSON file?
I have a JSON file with the following data: Whereby I want my output to be as follows: This is the code that I currently have, however it only works for the first part of the JSON file and does not iterate over all the other values: When I do run the above code the output is as follows: Question
Some Altair charts fade
Updated: Changing alt.X(‘yearmonthdate(TimeUTC):T’ to alt.X(‘yearmonthdate(TimeUTC):O’ made the problem go away. See bottom of post. I have four years of data of the form: TimeUTC FlightID DroneType 2018-08-22 19:35:23.024386+00:00 2018-08-22 19:35:23+00:00 663f-46fe-8887-d37895745506 …
Combine DateRangePicker and Dropdown in Plotly Dash
I’m trying to use DateRangePicker and Dropdown to callback a dash_table. Actually I tried to call dropdown option first and then call dash_table after calling options, but it didn’t work. I don’t know how to add a second call back that is based on dropdown options. Below is my code: Answer Y…
PermissionError: [Errno 13] Permission denied on mac
When I try to run the code below, the mac refuse the connection. The output message is PermissionError: [Errno 13] Permission denied Answer The port 80 is considered as privileged port(TCP/IP port numbers below 1024) so the process using them must be owned by root. When you run a server as a test from a non-p…
After calling NotePad++ using subprocess, Python won’t start executing other codes until I close the Notepad program
I am trying to open a .txt file using NotePad++ in Python IDE using subprocess.call function. One issue I needed help is that once I execute below codes: subprocess.call([r”C:Program FilesNotepad++notepad++.exe”, r”C:locationmyfile.txt”]) Python won’t start executing other codes …
Loading YOLO: invalid index to scalar variable
Getting an error for IndexError: invalid index to scalar variable on the yolo_layers line. This code won’t work on my Jupyter notebook but will run fine on google collab. No idea why. Could be my python version? Answer It’s may caused by the different versions of cv2. The version of cv2 module wit…
Scraping Crunchbase to extract corporate news
I’m trying to scrape the news and signals tab from Crunchbase, and having no joy. Having consulted prior threads on Stackoverflow, I have been using this code that has worked well for all other tabs (taking duolingo as an example): I suspect it’s something to do with how Crunchbase has coded-up th…