I have 1 to 1 field in my model where i would still need to link the data with other while i delete them on the other table.In my view i am deleting model 2 instance while that is deleted i am setting the completed to Tue but it is throwing error. models.py Answer There’s missing a default value or
Tag: python
django forms don’t show clear image button
I have a Django form modalform. There is an image field in it. The issue is that when the user clicks on the clear image, the image is removed from the models, but when the html file tries to retrieve the image, an error message appears The ‘image’ attribute has no file associated with it. So I…
Python non-blocking socket
Hi I am trying to create a very simple peer-to-peer chatting program in python. The first user can runs the server.py program below to bind to a socket. Then another user can use netcat to connect to the server and communicate. However, the program is only able to get the user’s input and send to the ot…
Running .py files from a .py file
I am trying to make a simple AFK script for if I need to leave my pc for short period and the code works on it’s own but when I try to use one script to run another, It runs but then stops a few seconds later with exit code 0. I’m not sure what’s wrong and I’ve tried multiple
Convert mp4/avi to gif but the gif is very slow
I use the below to convert my mp4 file to gif file. It worked fine but when I load the gif with browser or local tool, the gif is moving very slow. E.g. It was an animal moving from point A to point B, in the mp4, it moves like normal but when I converted it to gif, it moves
How to close file after request
I am using this for POST request but after usage trying to delete it with os.remove and it gives “it’s used by a process”. How to close file after? Answer You can use with …:
How to efficiently filter a large python list?
I have a relatively large array called allListings and want to filter out all rows where allListings[:][14] == listingID. This is the code I am using: tempRows = list(filter(lambda x: x[14] == listingID, allListings)) The filtering is repeated in a for loop for all different listingID Profiling shows, that th…
How do I write series to specific existing column in csv file?
Thank you very much for your time and help. I have a pandas series named Lon_count, now I want to write it to existing column named stationLon in a csv file read by filepath. I tried and get KeyError: “None of [Index([‘s’, ‘t’, ‘a’, ‘t’, ‘i’, &…
Error when trying to jit the computation of the Jacobian in JAX: “ValueError: Non-hashable static arguments are not supported”
This question is similar to the question here, but I cannot link with what I should alter. I have a function where variational_parameters is a vector (one-dimensional array) of length P, eps is a two-dimensional array of dimensions K by N, and a, b are fixed values. The elbo has been successfully vmapped over…
Copy file using hexdump and hexedit
I have a binary that has to be copied over serial port to the device that has hexedit installed. How to get hex dump of the binary on Linux (preferably in Python) in a format that can be simply inserted into hexedit? Answer Restating the question a little, I think you want to generate a hex dump of a binary