Category "python"

Fastest add with repeated indices: np.add.at / sparse.csr_matrix?

Say I have a num_indices * n indices matrix (in range(m)) and a num_indices * n values matrix, i.e., m, n = 100, 50 num_indices = 100000 indices = np.random.ran

How do I add an Automatic ID to this Python Database?

I made this database, but I dont understand why the id part doesnt work. As an response I get this: [(None, 'Wilhelm der Erste', 1027, '09.09.1087', '1066-1087'

how to install channels redis in django using pip without errors

I am trying to install channels redis module using pip but so far am still getting errors. I installed Microsoft c++ build tools as the error suggested but so f

Hypothesis library: strategy for the complement of some other strategy

I'm using the Hypothesis library for unit testing. With this library you don't hand-pick inputs, but you define the complete set of inputs for which you want to

Failed to Build Wheel For Opencv

I upgraded wheel, pip, and setuptools all to the latest version, with the following command. pip3.9 install --upgrade pip setuptools wheel When I try to install

How to append python dictionary to text file

I tried the following the code import json final_key = ["letters", "words", "score"] final_list = [] letters_1=['U', 'I', 'J', 'T', 'D', 'F', 'S', 'H', 'J'] fin

How can I parse YAML with TAGs?

I have a YAML document like this: steps: - !<!entry> id: Entry-1 actions: [] - !<!replybuttons> id: ReplyButtons-langcheck foot

How to fix the plot using iteration through the subplots?

import pandas as pd import matplotlib.pyplot as plt df = pd.read_csv("population.csv") fig, axs = plt.subplots(nrows=2, ncols=2) for col, ax in zip(df.column

merging two excel files and then removing duplicates that it creates

I've just started using python so could do with some help. I've merged data in two excel files using the following code: # Import pandas library import pandas a

how can i sort file elements in python?

I have to sort some elements in a text file that contains the names with the schedules of some teachers. Searching on google, I found this program: def sorting(

spatial domain convolution not equal to frequency domain multiplication using pytorch

I want to verify if 2D convolution in spatial domain is really a multiplication in frequency domain, so I used pytorch to implement convolution of an image with

How to determine between inner and outer contour with Python OpenCV?

I want to have a polygon region of interest and would like to perform an object detection algorithm within this area. For example, the user gives some points an

inheritance TypeError: __init__() takes from 1 to 2 positional arguments but 8 were given

I am trying to follow an example related to inheritance from a Python OOP book. However, I am facing an error. from __future__ import annotations class Contact

is there a way to reduce reduce the number of for loops and use numpy functions to reduce time for code completion

Passing a function with parameters arr(array), risk_matrix(square matrix),risk_factor(float value) def infection(arr,risk_matrix,risk_factor): arr=arr*risk_

tensorflow crashes on Mac M1

I am trying to start using tensorflow on my M1 Mac. However, I only get the following message when I try to import tensorflow Python 3.8.5 (v3.8.5:580fbb018f, J

How to decode Token Address from a given Pair Address in web3

What I am trying to accomplish is to get the Contract Address 0x1ada8bb610c59aae25d8dd8f354282f5693cefb1 given the LP Pair address 0x0D0b63b32595957ae58D4dD60a

How to get De-Duplicated OpenIE (Clause Extraction) Results?

I've exhausted all the configuration options I'm aware of: from openie import StanfordOpenIE # https://stanfordnlp.github.io/CoreNLP/openie.html#api # Defaul

how to print a list inside a function without using append method

k=[] def subject(a): for i in range(0,a): ele=int(input("number: ")) k=ele print(k) n=int(input("Enter numb of elements:

Can you explain me the RLE algorithm code in python

I I've finally found how to make a RLE algorithm by watching a tutorial but This tutorial didn' t explain something in that code I didn't get why we write j = i

Python - cant upload file to FTP server using ftp_TSL connection

I am trying to upload a file via python and ftplib. Code below. File shows up on server data is written but transfer never completes, and i get no error message