I’m working on a 2d game in pygame, and I want it to be available on the web. In my head, a fun way to challenge myself is to use web assembly to make the game available on the web. So I’m wondering if there is any way to take executable binary (.exe) and somehow “compile” .wasm if tha…
Discord.py WELCOMER – How to make a custom image for welcome messages
I’d like to add the “custom” image for new discord users in my server. Just like this: Click here for the image. This is what I have for now: Answer You need to use an image processing/manipulation library called pillow aka PIL. You’d have your default/template image, as you provided (…
Why does my Lambda function write an empty csv file to S3?
I’m calling the YouTube API to download and store channel statistics in S3. I can write a csv file to my S3 bucket without any errors, but it’s empty. I have checked this thread Why the csv file in S3 is empty after loading from Lambda, but I’m not using a with block in to_csv_channel(). I&#…
Line detection issue – OpenCV in Python
I have written the following script with which I aim to detect lines in Gazebo (a simulation environment): The code is integrated in ROS, so please focus your attention at the image_callback function. My issue is that the line that I want to detect is quite noisy and I cannot figure out how to detect it corre…
Tensorflow Keras evaluate method return a empty list
Hello i am follow the time series forecasting tutorial in tensorflow https://www.tensorflow.org/tutorials/structured_data/time_series, I have the same project, the only difference is that I am using a different dataset, when evaluating the models, the model.evaluate () method returns an empty list, it does no…
Can pandas perform an aggregating operation involving two columns?
Given the following dataframe, is it possible to calculate the sum of col2 and the sum of col2 + col3, in a single aggregating function? . col1 col2 col3 0 a 1 10 1 a 2 20 2 b 3 30 3 b 4 40 In R’s dplyr I would do it with a single line of summarize, and I
Using only numpy, is there a way to create a square wave?
I have tried using masks and making lists like x = [0,0.5,0.51,1,1.01], y = [1,1,-1,-1,1] works ofcourse, but is quite tedious and not as nice as i want to make a square wave from x = 0 to 5. Answer You could write a little function like this to populate x and y
Iterative summation
I’m trying to write a python code that allows me to iteratively sum up the average values of three elements of a list, starting with the third element and its two predecessors. Let me give you an example: I want to calculate the following: Since I’m quite new to programming I couldn’t find a…
Can’t find SpaCy model when packaging with PyInstaller
I am using PyInstaller package a python script into an .exe. This script is using spacy to load up the following model: en_core_web_sm. I have already run python -m spacy download en_core_web_sm to download the model locally. The issue is when PyInstaller tries to package up my script it can’t find the …
Pandas dataframe diff between rows with column offset
I have a Dataframe with the following structure time_start time_end label time time + 1 action time + 1 time + 2 some_other_action I would like to take see the diff of time_start and previous row time_end. in this case (time + 1) – (time + 1) = 0 I have tried df.diff, but that only yields the diff withi…