Python on Micha Kops' Tech Notes

Pelican Blog Quickstart with Docker

Tue, 10 Sep 2024 00:00:00 +0200

Prerequisites

We need to have at least Docker installed.

Creating the Blog

First we’re creating a new directory for our blog and generate the blog structure using William Jackon’s docker-pelican:

mkdir my-site
cd my-site
docker container run -it --rm --entrypoint pelican-quickstart -v ${PWD}:/pelican-site ghcr.io/williamjacksn/pelican
Welcome to pelican-quickstart v4.9.1.

This script will help you create a new Pelican-based website.

Please answer the following questions so this script can generate the files
  1 Title: My First Review
needed by Pelican.

> Where do you want to create your new web site? [.]
> What will be the title of this web site? Micha's Tech Notes
> Who will be the author of this web site? Micha Kops
> What will be the default language of this web site? [C]
> Do you want to specify a URL prefix? e.g., https://example.com   (Y/n) Y
> What is your URL prefix? (see above example; no trailing slash) https
> Do you want to enable article pagination? (Y/n) n
> What is your time zone? [Europe/Rome]
> Do you want to generate a tasks.py/Makefile to automate generation and publishing? (Y/n)
> Do you want to upload your website using FTP? (y/N)
> Do you want to upload your website using SSH? (y/N)
> Do you want to upload your website using Dropbox? (y/N)
> Do you want to upload your website using S3? (y/N)
> Do you want to upload your website using Rackspace Cloud Files? (y/N)
> Do you want to upload your website using GitHub Pages? (y/N)
Done. Your new project is available at /pelican-site

Python Data Science Snippets

Wed, 08 Jul 2020 00:00:00 +0200

This article needs update!

Jupyter

Installation

pip in venv

mkdir newdir && cd newdir
python -m venv .venv (1)
source .venv/bin/activate (2)
pip install jupyter numpy pandas sqlalchemy (3)
pip freeze > requirements.txt (4)
python -m jupyter lab (5)
deactivate (6)

1	create a new virtual environment
2	activate the environment
3	install several libraries into the activated environment
4	create a list with all dependencies install for sharing or reinstallation later
5	start jupyter
6	having finished we might want to exit the virtual environment

Creating Pre-Commit-Hooks in Git and Mercurial: Prefix Commit Messages for Feature/Story Branches

Sun, 16 Dec 2012 00:00:00 +0100

Managing my projects’ source code I am using Git also as Mercurial. Therefore I often encounter the situation where I am creating a special branch to implement a specific user story or feature request.

Now when working on such a story branch I often enter the issue-key or a short title as a prefix for each commit message. Doing this by manually is a waste of time and error-prone and luckily for us, each of both DVCS offers us an easy API to add custom hooks to the different life-cycle events.

Python Snippets

Mon, 01 Mar 2010 00:00:00 +0100

Virtual Environments

Create and activate a venv

python -m venv /path/to/new-env (1)
source /path/to/new-env/bin/activate (2)

1	Creates a new virtual environment
2	Activate the new virtual environment

Deactivate venv

deactivate

Save used dependencies to a file

pip freeze > dependencies.txt

Install dependencies from file

pip install -r dependencies.txt

Storing and fetching Credentials from the System Keyring

I am using jaraco/keyring here:

pip install keyring

import keyring

keyring.set_password("system", "db.sample.password", "xoxo")

print(keyring.get_password("system", "db.sample.password"))