Programming

You need to have a personal access token to GitHub. In this script I use my token saved in ~/.github_access_token. Also you need to have the git utility on your system. Install PyGithub package to work with GitHub API pip install PyGithub The gist is actually a git repository. All your gists you can clone as regular repositories into a directory called repos. Script clones gists with names contained the IDs. Also script creates index.json which contains an array of objects describing what you got. ...

Если не вдаваться в технические детали Docker ближе всего к VirtualBox, VMware или другим средствам виртуализации. Технические отличия заключаются в других способах изоляции запускаемой гостевой (guest) операционной системы и разделения ресурсов основной (host) операционной системы. Как правило каждый работающий в Docker экземпляр гостевой операционной системы предназначен для запуска одного единственного приложения. При этом задействуется меньше ресурсов, чем при запуске в виртуальной машине. Для этого создается своя файловая система, свои виртуальные сетевые интерфейсы - как бы контейнер внутри которого приложение работает. Docker это программное обеспечение для контейнеризации приложений. ...

Sometimes I needed to figure out the class hierarchy. For this, I wrote a small piece of code to visualize the class tree. def format_output(class_name, prefix, is_last): left_simbol = "└" if is_last else "├" return prefix + left_simbol + "───" + class_name def print_subclass_tree(thisclass, prefix=""): for count, subclass in enumerate(thisclass.__subclasses__(), start=1): is_last = count == len(thisclass.__subclasses__()) print(format_output(subclass.__name__, prefix, is_last)) devide_simbol = "" if is_last else "│" print_subclass_tree(subclass, prefix + devide_simbol + "\t") print_subclass_tree(BaseException) # ============ OUTPUT ================== # >>> print_subclass_tree(BaseException) # ├───Exception # │ ├───TypeError # │ ├───StopAsyncIteration # │ ├───StopIteration # │ ├───ImportError # │ │ ├───ModuleNotFoundError # │ │ └───ZipImportError # ... # ├───SystemExit # └───KeyboardInterrupt # >>> from django.views.generic.base import View # >>> print_subclass_tree(View) # ├───TemplateView # ├───RedirectView # ├───BaseDetailView # │ ├───DetailView # │ ├───BaseDateDetailView # │ │ └───DateDetailView # │ └───BaseDeleteView # │ └───DeleteView # ... # └───JavaScriptCatalog # └───JSONCatalog Link: gist.github.com

I wrote ansible playbook for starting up a production Django server with PostgreSQL, Gunicorn and Nginx. When I tested the script, I used the Ubuntu Server image from this link. All I needed to install additionally was an ssh server for ansible to work. sudo apt update && sudo apt upgrade sudo apt install openssh-server I used a VirtualBox image and set the network settings to bridge mode. The IP address was obtained via the dhcp protocol. The command to display the ip address is ip addr. ...

Thanks Fedor Borshev for awesome tutorial “Как писать код на МОЩНОЙ удалённой машине DigitalOcean”. I repeated Fedor’s experience with Windows + WSL2. Video: Link to ansible playbook for for deploying docker on DO droplet and empty django project for testing: github. Links: [1] Ansible playbook for for deploying docker on DO droplet [2] Youtube-канал “Почему не работает?”

Thanks Yannick Chenot for the article How to Build a Dynamic GitHub Profile with GitHub Actions and PHP! It describes how to set up automatic updating of links to the latest blog posts in the GitHub profile using GitHub Actions. I will not retell the article, and you can read about the profile on GitHub here. Here is my python solution import requests from bs4 import BeautifulSoup url = "https://vostbur.github.io" main_page = BeautifulSoup(requests.get(url).content, "html.parser") content = f"### Last posts from [blog]({url}):\n\n" for article_div in main_page.find_all("div", {"class": "mb-4"}): article_url = article_div.find("a", href=True) content += f" - [{article_url.text}]({article_url['href']})\n" with open("README.md", "w", encoding="utf-8") as f: f.write(content) Yaml file for GitHub Actions ...

For deploying Django apps, I tried PaaS such as Heroku and Pythonanywhere. It’s the turn of the DigitalOcean App Platform. And so far, this is the easiest and fastest way to deploy a Django app in production. There is awesome guide on how to do this on DigitalOcean’s tutorials. For testing, I wrote a small application that generates a configuration snippet for configuring ssh on cisco devices. For simplicity, I didn’t use a database and static content. For such an application, in fact, there is no need for a server side, just JavaScript is enough :) ...

In mapquest.com I have found out the best APIs for working with maps and geopositions in my opinion. For example, I wrote a small script to navigate between cities. That is the result for the route from Bryansk to Moscow. The API has many request parameters. JSON response contains a lot of data: Links: [1] developer.mapquest.com [2] Example of using the API

In the continuation of the post “Creating dockerized Django app with VSCode”, I updated the source code to work with GitHub Actions. Setup a basic workflow using GitHub Actions Add to the requirements.txt file the following line to check with linter: flake8>=3.9.2,<3.10 Create a new file at .github/workflows/cd.yml and fill it with the following contents: --- name: Code checks on: push: branches: [ master ] pull_request: branches: [ master ] jobs: test: name: Test runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 - name: Test run: docker-compose run --rm . sh -c "python manage.py test" lint: name: Lint runs-on: ubuntu-20.04 steps: - uses: actions/checkout@v2 - name: Lint run: docker-compose run --rm . sh -c "flake8" To add a cool badge I updated README.md with the following link: ...

Thanks to Mark Winterbottom for the interesting videos and the idea for this post. Creating a Django project Start by creating a new directory for your project (eg: vscode-django-docker), and open it in VSCode. mkdir vscode-django-docker cd vscode-django-docker git init code . Then, add a .gitignore for your project. You can use template for Python provided by GitHub or generate on gitignore.io. Now let’s create a Django project by running the one-line-command below ...