https://github.com/bmedicke/amalthea

collection of 🎉 Jupyter Notebooks 🐐 for JupyterLab, creative coding (voronoi diagrams, perlin noise, chaos game), small demos and tutorials
https://github.com/bmedicke/amalthea

data-science frequency-analysis jupyter-notebook jupyterlab matplotlib mqtt paho pandas perlin-noise python python3 scipy seaborn

Last synced: 3 months ago
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collection of 🎉 Jupyter Notebooks 🐐 for JupyterLab, creative coding (voronoi diagrams, perlin noise, chaos game), small demos and tutorials

Host: GitHub
URL: https://github.com/bmedicke/amalthea
Owner: bmedicke
Created: 2021-05-08T05:19:37.000Z (about 4 years ago)
Default Branch: main
Last Pushed: 2022-08-05T09:29:57.000Z (almost 3 years ago)
Last Synced: 2025-02-13T17:22:43.663Z (4 months ago)
Topics: data-science, frequency-analysis, jupyter-notebook, jupyterlab, matplotlib, mqtt, paho, pandas, perlin-noise, python, python3, scipy, seaborn
Language: Jupyter Notebook
Homepage:
Size: 8.08 MB
Stars: 1
Watchers: 1
Forks: 0
Open Issues: 10
Metadata Files:
- Readme: readme.md

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README

        ![amalthea logo](samples/amalthea-logo.png)

# Amalthea - notebooks for JupyterLab

## table of contents

* [the notebooks](#the-notebooks)

  * [creative coding](#creative-coding)

    * [perlin-noise](#perlin-noise)

  * [demos](#demos)

    * [mqtt-publisher & mqtt-subscriber](#mqtt-publisher--mqtt-subscriber)

    * [frequency-analysis-caesar-cipher](#frequency-analysis-caesar-cipher)

    * [euclidean-algorithm](#euclidean-algorithm)

    * [pomodoro](#pomodoro)

    * [speedtest](#speedtest)

  * [tutorials](#tutorials)

* [setup & development](#setup--development)

  * [venv](#venv)

  * [custom shortcuts and settings for JupyterLab](#custom-shortcuts-and-settings-for-jupyterlab)

  * [custom shortcuts and settings for Jupyter Notebook](#custom-shortcuts-and-settings-for-jupyter-notebook)

  * [requirement management](#requirement-management)

* [used libraries](#used-libraries)

## the notebooks

### creative coding

#### perlin-noise

![perlin noise example 3](samples/perlin-noise-03.svg)

![perlin noise example 0](samples/perlin-noise-00.svg)

![perlin noise example 4](samples/perlin-noise-04.svg)

![perlin noise example 2](samples/perlin-noise-02.svg)

![perlin noise example 1](samples/perlin-noise-01.svg)

![perlin noise example 5](samples/perlin-noise-05.svg)

### demos

#### mqtt-publisher & mqtt-subscriber

Cross-notebook communication via MQTT. For a practical example see [bmedicke/quantum_cryptography](https://github.com/bmedicke/quantum_cryptography).

Publishing a message:

![mqtt pubisher sample](samples/mqtt-publisher.png)

Receiving a message from a subscribed topci:

![mqtt subscriber sample](samples/mqtt-subscriber.png)

#### frequency-analysis-caesar-cipher

Breaking a caesar ciphre by using a frequency analysis to calculate the key.

![frequency-analysis sample](samples/frequency-analysis.png)

![caesar-cipher sample](samples/caesar-cipher.png)

#### euclidean-algorithm

This notebooks calculates the greatest common divisor and colors numbers

to make it easier to keep track of the steps.

![euclidean-algorithm sample](samples/euclidean-algorithm.png)

#### pomodoro

An image showing the current status in a Pomodoro cycle is displayed (via Markdown output). The data is read from an csv file and automatically updates when it changes.

![pomodoro_working](samples/pomodoro.gif)

#### speedtest

This notebook analysis a csv file created by a script running speedtest-cli to compare internet provider speeds.

![speedtest sample 0](samples/speedtest00.png)

![speedtest sample 1](samples/speedtest01.png)

### tutorials

A series of tutorials covering Jupyter and useful libraries.

## setup & development

### venv

```sh

# initial setup:

git clone https://github.com/bmedicke/amalthea.git

cd amalthea

python3 -m venv env

source env/bin/activate

pip install -r requirements.txt

# subsequent starts:

source env/bin/activate # if not active.

jupyter notebook notebooks/

# if you don't want your browser to open add the flag: --no-browser

# to access the notebook from another device add: --ip=0.0.0.0

```

### custom shortcuts and settings for JupyterLab

```json

{

  "shortcuts": [

    {

      "command": "notebook:run-cell",

      "keys": [ ";" ],

      "selector": ".jp-Notebook:focus"

    },

      {

      "command": "kernelmenu:restart-and-clear",

           "keys": [ "Ctrl L" ],

          "selector": ".jp-Notebook:focus"

      },

            {

      "command": "notebook:restart-run-all",

           "keys": [ "Ctrl Shift R" ],

          "selector": ".jp-Notebook:focus"

      }

  ]

}

```

* list of commands: https://jupyterlab.readthedocs.io/en/latest/user/commands.html

### custom shortcuts and settings for Jupyter Notebook

Edit the file: `~/.jupyter/nbconfig/notebook.json`.

```json

{

  "Cell": {

    "cm_config": {

      "lineNumbers": true

    }

  },

  "keys": {

    "command": {

      "bind": {

        ";": "jupyter-notebook:run-cell",

        "?": "jupyter-notebook:show-keyboard-shortcuts",

        "ctrl-l": "jupyter-notebook:clear-cell-output",

        "g,c": "jupyter-notebook:restart-kernel-and-clear-output",

        "g,i": "jupyter-notebook:interrupt-kernel",

        "g,r": "jupyter-notebook:restart-kernel-and-run-all-cells",

        "g,s": "jupyter-notebook:shutdown-kernel",

        "h": "jupyter-notebook:scroll-notebook-up",

        "i": "jupyter-notebook:enter-edit-mode",

        "l": "jupyter-notebook:scroll-notebook-down",

        "s": "jupyter-notebook:split-cell-at-cursor",

        "shift-/": "jupyter-notebook:show-keyboard-shortcuts",

        "cmd-c": "jupyter-notebook:copy-cell",

        "ctrl-v": "jupyter-notebook:paste-cell-replace",

        "shift-j": "jupyter-notebook:extend-selection-below",

        "shift-k": "jupyter-notebook:extend-selection-above",

        "ctrl-j": "jupyter-notebook:move-cell-down",

        "ctrl-k": "jupyter-notebook:move-cell-up"

      },

      "unbind": [

        "l",

        "h",

        "i,i",

        "s"

      ]

    }

  },

  "Notebook": {

    "Header": true,

    "Toolbar": true

  }

}

```

### requirement management

**installing libraries from git repos that are not on PyPi**

```sh

pip install -e git+https://github.com/pvigier/perlin-numpy#egg=perlin-numpy

```

**updating the `requirements.txt` file after adding or updating libs**

```sh

pip freeze > requirements.txt

```

## used libraries

Most of these are in the PyPi and thus can be installed with `pip`. For the rest the pip-egg command will be listed.

* [ipympl](https://github.com/matplotlib/ipympl)

  * for `%matplotlib widget`

* [matplotlib](https://github.com/matplotlib/matplotlib)

* [paho-mqtt](https://github.com/eclipse/paho.mqtt.python)

* [pandas](https://github.com/pandas-dev/pandas)

* [perlin-numpy](https://github.com/pvigier/perlin-numpy)

  * `pip install -e git+https://github.com/pvigier/perlin-numpy#egg=perlin-numpy`

* [scipy](https://github.com/scipy/scipy)

* [seaborn](https://github.com/mwaskom/seaborn)

* [termcolor](https://pypi.org/project/termcolor/)

* [ipywidgets](https://github.com/jupyter-widgets/ipywidgets)

---

Installation without using `requirements.txt`:

```sh

pip install matplotlib paho-mqtt pandas scipy seaborn termcolor ipympl jupyterlab\

    -e git+https://github.com/pvigier/perlin-numpy#egg=perlin-numpy

```

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https://github.com/bmedicke/amalthea

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