I tried LeetCode every day 20. Valid Parentheses (Python, Go)

## Introduction @Ishishow is running a free English word site [E-tan](https://your-e-tan.com/). I would like to work on letcode every day to improve my ability as a programmer and give my own way

[Python] How to save images on the Web at once with Beautiful Soup

## Introduction Here, we will introduce "How to save images on the Web at once" by web scraping. : warning: Attention: warning: If it is protected by copyright or if it is OK in terms of copyright

[Python] Invalid Schema: No connection adapters were found for [Image URL]

The text is quite messy as it is written in my own memo. #### **`python.py`** ```py import requests as req #First of all, from the point of acquiring one image test_url="https://papimo.jp/h/00031

I wrote it in Go to understand the SOLID principle

# About the SOLID principle ## What is the SOLID principle? --SRP (single responsibility principle) --OCP (Open and Closed Principles) --LSP (Liskov Substitution Principle) --ISP (Principle of i

How to download files from Selenium in Python in Chrome

# Introduction Note how to download files with selenium + python + chrome ## Environmental information * python： 3.9.0 * chrome： 86.0.4240.198 * selenium： 3.141.0 # File download settings If you s

WEB scraping with python and try to make a word cloud from reviews

# Content of this article WEB scraping and extracting reviews and reviews from imports of MeCab and Beautiful Soup. Let's make it a wordcloud and visualize what is written! It is the content. # To b

I tried LeetCode every day 14.Longest Common Prefix (Python, Go)

## Introduction @Ishishow is running a free English word site [E-tan](https://your-e-tan.com/). I would like to work on letcode every day to improve my ability as a programmer and give my own way

How to get a sample report from a hash value using VirusTotal's API

# Introduction I have the hash value information of the sample at hand, but it is too much to investigate manually, so I created a program that automatically acquires the report information from Viru

[Linux] File search

# Introduction Note how to search for files on Linux * Search by file name * Search for files that contain a specific string * Fast file search ## Environmental information * OS：Redhat 7.7 # Fi

Program to search all permutations (for competitive programming)

I wrote a program in each language that enumerates all permutations. Assuming that there are four elements, `10`,` 20`, `30`, and` 40`, the output is as follows. If there are $ n $ elements, it will

# 4 [python] Basics of functions

# Introduction This article is written by a fledgling engineer who has been studying programming for about two months for the purpose of output. After biting ruby and js, I became interested in the

Features of Go language

# Overview * We are developing a service called [Gocci.me]("https://gocci.me/") in Go language, and summarized the features of that Go language. # Language design and grammar ## simple There are no

[Anaconda] Activate the virtual environment

# Overview Activate the virtual environment. # Check the list of virtual environments ``` conda info -e ``` After confirming the name of the virtual environment # Activate the virtual environmen

[Python] Creating a scraping tool Memo

Mainly memos for myself. ## goal Create a scraping tool to get pachinko data ## design ### Unit data acquisition [OK until test] It is a program to get the number of G and the number of big hit

Django Make choices only for the facility you belong to

Development is proceeding at the same pace as before, but I haven't been able to post. This time, when registering something, I will try to select only the store to which I belong. This is to preve

How to automatically install Chrome Driver for Chrome version with Python + Selenium + Chrome

# Introduction I was suffering from ChromeDriver version error with selenium + python + chrome, so make a note of what to do ## Environmental information * python： 3.9.0 * chrome： 86.0.4240.198 * se

Deep Reinforcement Learning 3 Practical Edition: Breakout

[Aidemy](https://aidemy.net/)　2020/11/22 # Introduction Hello, it is Yope! I'm a crunchy literary school, but I was interested in the possibilities of AI, so I went to the AI-specialized school "Aide

I tried to aggregate & compare unit price data by language with Real Gachi by Python

I wanted to compare and aggregate the unit prices of freelance projects by language from before, so I actually investigated it. Information on freelance projects is aggregated based on the followi

Convert PDF of new corona outbreak case in Aichi prefecture to CSV

```python import datetime import pathlib import re from urllib.parse import urljoin import pandas as pd import pdfplumber import requests from bs4 import BeautifulSoup def fetch_file(url, dir="."):

Deep reinforcement learning 2 Implementation of reinforcement learning

[Aidemy](https://aidemy.net/)　2020/11/22 # Introduction Hello, it is Yope! I'm a crunchy literary school, but I was interested in the possibilities of AI, so I went to the AI-specialized school "Aide

[VBA] Function to judge whether the character string of UTF-8 file system is 255 or less and function to count UTF-8 character string in bytes

# From Ansi to UTF-8 Anguish begins with the counting method at ANSI [A function ansiLenB Excel that can be easily created before starting Access](https://qiita.com/Q11Q/items/9eced5c1e7a10fa145b1)

Get the number of readers of a treatise on Mendeley in Python

# Introduction Researchers may be concerned about the number of citations of academic papers they have seen / written. You can easily check the number of citations on Google scholar etc. As a precu

I made a C ++ learning site

# Introduction Is C ++ harder to study than other languages? The contents of books and learning sites are old or scarce, aren't they? Even though the language specifications are complicated, I thi

[Python] Django Source Code Reading View Starting from Zero ①

[View version ② FormView](https://qiita.com/tsuperis/items/1aa7cd82d76e4ae9f9c3) # Introduction "Reading the source code" is one of the ways to learn programming efficiently. The famous [Become a

The easiest procedure and explanation for installing Oracle Linux 8.3 (DB construction first part)

I plan to explain the connection from .NET (Framework, Core, 5.0 comprehensively) to Oracle Database, focusing on ODP.NET Managed Driver, but first of all, in order to build the essential Oracle Data

Memo that refers to dictionary values as attributes (reinventing the wheel)

# AttrDict is more convenient, but for those who want to use it for a while but don't want to install it ## Definition ```python class Dict(dict): pass Dict.__getattr__ = lambda s, k: s.get(k) ``` #

I made a simple typing game with tkinter in Python

# Introduction In this article, we will develop an application using Python. The standard library tkinter is used as the GUI library. If you have some understanding of python by reading this articl

Memory leak in Python Jupyter Lab (Notebook)?

## environment - Kaggle Docker Python v86 https://console.cloud.google.com/gcr/images/kaggle-images/GLOBAL/python ## phenomenon I'm using Jupyter Lab, and after defining variables, del and gc.co

Using Graphviz with Jupyter Notebook

# at first In this article, the author who has never used Graphviz uses ** Graphviz ** in ** jupyter-notebook **. By the way, there are various information on the net such as how to use Graphviz. For

A simple data analysis of Bitcoin provided by CoinMetrics in Python

**【Text】** --- This time, I will change my mind a little and introduce an example of simple data analysis (visualization) using Python. CoinMetrics provides data of each cryptocurrency (including