A program struggle to process a floating-point list in parallel on four clusters of Raspberry Pi 4B via Python socket communication and reduce the loop calculation time to 1/4.

![1.jpg](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/960318/a1cb4de9-3d4a-196c-d4c8-ef5d6c55eeb3.jpeg) This post is a record when I created a python program that processes in paralle

[Python] Try to create ring fit data using Amazon Textract [OCR] (Try code review with Code Guru)

This article is a continuation of the previous one. Just around the time I wrote the previous article, I noticed that my company's Advent calendar is related to AI, and I would like to confirm while

if True> = False: Python "True" Go "What ???"

<FONT color="red"><FONT SIZE=6></FONT>$\huge{True >= False}$</FONT> What this…… TL;DR #### **`Python3`** ``` python3 arr = ['Apple', 'Gorilla', 'Rappa'] print(arr[False]) #Apple print(arr[True]) #

At this time, I tried various Python virtual environments such as Anaconda and pyenv.

This is the article on the 18th day of [NTT DoCoMo R & D Advent Calendar 2020](https://qiita.com/advent-calendar/2020/nttdocomo). # Introduction Hello. I'm Ishikawa, a DoCoMo employee. I'm alway

When the Linux command $ yum -y install gives an error (yum: command not found)

The "yum" command is a package management system, but it doesn't seem to work as standard on all Linux distributions. If you get a yum: command not found error, check your distribution.

Achieve Linux/dev/null with Windows system function

Note that I wanted to realize the following when calling another exe from exe with the sysytem function of windows --Do not display the standard output of the exe to be called --I want to use only

Something to enjoy with Prim Pro (X-Play) and Python

# Something to enjoy with Prim Pro (X-Play) and Python * This article is the 17th day article of [Nutanix Advent Calendar 2020](https://adventar.org/calendars/4998). * Keywords: Nutanix, python, X

Until building a Python development environment using pyenv on Ubuntu 20.04

## Python environment setup Python is popular. Python has become more popular lately, but it's very old and older than Java and PHP. Since it is an old language, it may not be able to incorporate

Use data class for data storage of Python 3.7 or higher

## Introduction Are you using a dictionary or ordinary class to store data in Python? Starting with Python 3.7, there is a dataclass decorator that is useful for storing data. In this article, I w

Make a Linux version of OpenSiv3D with find_package a little easier

Since it is troublesome that the Linux version of OpenSiv3D can only be built with the cloned file `OpenSiv3D/Linux/App`, make it compatible with` make install`. Save the following patch as `diff.pa

[Linux] A story about mounting a NAS through a firewall using NFS

I learned from Linux, so I will leave it. The work started with the words, "Finally this. Thank you for working next week." .. .. In order to meet the desire to mount a NAS over the FW, I touched L

[Linux] [AWS Lambda] Cron format setting manual

#### background Regarding the Cron format that enables scheduled execution when performing things such as website crawling and server life and death monitoring database backup on a regular basis, se

Easy script migration from CentOS to Oracle Linux

# 1. Where to move As has been talked about everywhere, the change from CentOS 8 to CentOS 8 Stream has been welcomed with great surprise and disappointment. The author himself was surprised and imm

Cropping images at once [python] [Pillow]

# Overview I wrote a python script that crops the specified coordinates from many images. # background When I screen the web conference screen, I do a full screen screenshot so as not to be late for

[Python] This is easy! Search for tweets on Twitter

I have tweepy installed with python3.6.3. Just do this in python. ```python # coding: utf-8 import tweepy CONSUMER_KEY = "Consumer key" CONSUMER_SECRET = "Consumer secret key" auth = tweepy.OAuth

Temporarily save a Python object and reuse it in another Python

This article is the 16th day article of [Takumi Akashiro Alone Advent Calendar 2020](https://qiita.com/advent-calendar/2020/takumi_akashiro "ひとり Advent Calendar 2020"). Finally, the stock of this a

Type Python scripts to run in QGIS Processing

## Introduction This is the third time I have written an article about Processing [^ 1] [^ 2]. QGIS Processing is convenient, isn't it? As the version of QGIS goes up, there are more algorithms, be

I tried LeetCode every day 111. Minimum Depth of Binary Tree (Python, Go)

#### What is Leetcode [leetcode.com](https://leetcode.com/) This is the practice of coding interviews for software developers. A total of more than 1,500 coding questions have been posted, and it s

Paste a large number of image files into PowerPoint [python-pptx]

# Overview I wrote a python script to generate PowerPoint with image files pasted one slide at a time. When sharing a screenshot image of a PC screen taken at a web conference with other people, I t

Make a cat detector with Google Colabratory (Part 2) [Python] ~ Use OpenCV ~

# Introduction In this article, I made a "cat detector" by applying the "face recognition" technology that I used when I participated in an image-based hackathon hosted by a company and learning from

Algorithm learned with Python 4th: Prime numbers

# #Algorithms learned in Python <prime numbers> ## Introduction Implement the basic algorithm in Python to deepen your understanding of the algorithm. As the fourth bullet, we will deal with prime

[Linux/LPIC] Memorandum

# Overview --Memo the content you were interested in as a memorandum ――Please note that the description is not exhaustive. # Super ## Summary of package management command differences |---|---|-

Memo of python + numpy/scipy/pandas/matplotlib/jupyterlab environment construction on M1 macOS (as of 2020/12/24)

I want to do data science with arm64 native python and numpy/scipy/matplotlib, Jupyter-lab etc. on M1 macOS. At present, if you try to install in the same way as for x86, M1 (arm64) will not compil

A note on optimizing blackbox functions in Python

## background * I want to optimize functions and calculations that are black box (e.g. run an external closed source program) or cannot be differentiated. ## blackbox optimization There are sever

[Linux] I installed CentOS on VirtualBox

I installed VirtualBox on my PC (Windows 10) and tried installing CentOS on VirtualBox. This is a complete personal note. Excuse me. What you downloaded -VirtualBox: VirtualBox 6.1.16 VirtualBox

Excel aggregation with Python pandas Part 2 Variadic

## motivation This is a continuation of [Excel Aggregation with Python pandas Part 1](https://qiita.com/atmaru/items/f895d30ab188eda468dd). The place where the function that connects dict is called

Write Python code that applies type information at runtime using pydantic

This article is the 16th day article of [Python Part 2 Advent Calendar 2020](https://qiita.com/advent-calendar/2020/python2). Type Hints was introduced in Python 3.5, and it is now commonplace to

[Python3] I want to generate harassment names from Japanese!

# Introduction Thank you for browsing. Nice to meet you, this is Qiita's first post. I love doing useless things. I'm new to Python, so if you have any suggestions for coding or knowledge, please

"Manim" that can draw animation of mathematical formulas and graphs with Python

## Introduction This article is the 7th day article of the Hannari Python Advent Calendar. I found an animation tool used in the YouTube channel "[3Blue1Brown (YouTube)](https://www.youtube.com/cha

Principal component analysis with Power BI + Python

# Introduction Programming languages ​​such as Python and R have the advantage that they have abundant statistical analysis libraries and can use advanced statistical methods for free, but modifying