How would it look for two columns? For ‘data1a’, ‘data2a’ and ‘data1b’, ‘data2b’? When I try to remove the others I get the error: ValueError: shape mismatch: objects cannot be broadcast to a single shape Reference: matplotlib multiple xticklabel for bar graph A…
How to downgrade an Raspberry Pi Zero W from Python 3.7 to 3.6 without breaking the environment (eg, pip), to use pyaudio
I’m trying to run an FFT on a few high frequency bins of a continuous audio stream from a USB microphone input using a Raspberry Pi Zero W. The Windows PC prototype runs but when deploying to the Pi there are issues with “pyaudio” which does not have a Python3.7 wheel(?) for ARM, only Python…
Precision for Python root function
I’m trying to approximate Julia sets using roots of polynomials in Python. In particular I want to find the roots of the nth iterate of the polynomial q(z) = z^2-0.5. In other words I want to find the roots of q(q(q(..))) composed n times. In order to get many sample points I would need to compute the r…
Tensorflow 2.3, Tensorflow dataset, TypeError: () takes 1 positional argument but 4 were given
I use tf.data.TextLineDataset to read 4 large files and I use tf.data.Dataset.zip to zip these 4 files and create “dataset”. However, I can not pass “dataset” to dataset.map to use tf.compat.v1.string_split and split with t separator and finally use batch, prefetch and finally feed int…
Python cancel process using ctrl + c without quitting program?
I want to be able to quit a action my program is preforming by hitting ctrl + c, but without quitting the program entirely. I’m sure there is a thread about this somewhere, but I couldn’t find anything related to what I want. Here is what I want . Answer You can wrap your function in a try except …
How to read all csv files from web page in a pandas data frame?
I’m trying to read all .csv files from https://github.com/CSSEGISandData/COVID-19/tree/master/csse_covid_19_data/csse_covid_19_daily_reports to a data frame. My code so far: Maybe somebody can help :D Answer Change the URL to and it should work. This gives you access to the raw csv file and not to a pag…
Converting a 3 column text file to csv in python?
I have a text file in in .txt format and I need it in .CSV format. It has 3 columns: timestamp, weight, voltage. Does anyone know a way to convert a .txt to .csv? The data I have is in this format: I can’t seem to format the above, there are 3 spaces (or a single tab) in-between values. I’ve
Function wrapper for multiple code lines in Python
I would like to wrap some code around a function (e.g. print timing information) and reuse this function for multiple code blocks: Is it possible to wrap multiple lines of code into a wrapper function, without defining functions for each code blocks? One way would be to define a function and use a decorator b…
How to edit this simple function to correctly sort letters and words in list alphabetically (Python)?
The objective is to take a list of strings, sort the letters in each string, and then sort the full list. We want to modify the list in place (so, use sort() rather than sorted()). My function: So, this means I would expect: To return “abc”, “bbd” This doesn’t work though. Can an…
How create a dynamic search results in a html list using dash/python, live results without submit botton
I am trying to create a dynamic search-box that allows doing research and auto-completion. I would like that when I type in a search box without pushing a button I have an HTML.Div with results. Exactly how it works in the yahoo finance search box. I am trying it but I have no good results, first it is very s…