I’m moving a desktop application from Python’s standard library logging to Loguru, and want to have a text box in the user interface that contains logging information. Is there a way to hook into Loguru error-level logging which allows the log message to be sent to a callback function? This would allow me to update ..
I have a callback from C to python which will do call my python callback function every one second until C socket connection is closed. Right now just using sleep(100) to hold python execution so the callback will happen. Without sleep how to hold execution of python until C socket is closed ? Note : ..
I am working with some feature tracking projects for visual odometry, and I am trying a LK good features to track with python Open CV + ROS. My issue is basically: Since I get the ros image via a callback function, I put my optical flow call inside the callback, but the callback function restarts ..
I have multiple tk.Checkbuttons that should share the same callback when clicked (or changed). The variables (states) of the checkboxes should be available within the callback that is triggered on status change (and used for all checkbuttons). There are many articles like this, most of them dealing with parallel lists of state-variables. Because I want ..
I have a form in Dash that takes in value and returns a filtered datatable based on that value: import dash import dash_bootstrap_components as dbc import dash_core_components as dcc import dash_html_components as html import pandas as pd from dash.dependencies import Input, Output import dash_table import numpy as np df = pd.DataFrame(np.random.randint(10, size=[100,4]), columns=set(‘ABCD’)) print(df) app ..
This is on an rpi. I have a c process running that dumps data into shared memory and a python script that monitors this shared memory for updated data. C process sets shared memory flags and python scripts clear the shared memory flags. Python is currently just polling and I would like to get away ..
My problem: starting a threaded function and, asynchronously, act upon the returned value I know how to: start a threaded function with threading. The problem: no simple way to get the result back get the return value from a threaded function. The problem: it is synchronous What I would like to achieve is similar to ..
I’m having trouble implementing an async service call in my subscriber callback. I found a previous post on ROS Answers about doing so here: https://answers.ros.org/question/302037/ros2-how-to-call-a-service-from-the-callback-function-of-a-subscriber/ However, the example in the answer here only prints the data being received by the subscriber and nothing else before performing the service call, then looks for the response elsewhere. ..
I have a script to plot a line graph of covid-19 deaths using bokeh in python. I’ve added a dropdown menu which lets the user choose a country to plot the new_deaths_per_million based on a datetime axis (date). My problem is that the dropdown menu is not linked/working. I have already tried to rewrite the ..
I am training a keras model with a data generator that reads the data in batches from a directory. This works great with model.fit(). But when using model.predict(), I would like to have both ypred and ytrue values returned. Can I enable/modify model.predict() to do this (maybe with a custom callback)? class DataGenerator(tf.keras.utils.Sequence): def__init__(self, ids, ..