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shared

Data exchange and persistence based on human-readable files

0.0.32
PyPI
Maintainers
1

License: MIT PyPI package version

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Shared is an experimental data exchange and persistence solution based on human-readable files. It serves as a playground to test new ideas and then create stable derivative projects. I recently built a multi-model embedded database for persisting arbitrary-sized data. The project is called Jinbase and I strongly encourage you to give it a try.

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Pyrustic Shared

Data exchange and persistence based on human-readable files

Table of contents

Overview

Shared is a Python package created to be the programmer's companion when it comes to storing unstructured application data, managing configuration files, caching data, and exchanging data with other programs.

Under the hood, Shared uses Paradict to encode a dictionary populated with strings, scalars (integer, float, decimal float, complex, booleans), date and time, null value, binary data and nested collections (list, set, and dictionary).

Note: This library does not implement any synchronization mechanisms to prevent simultaneous access to a file, which could lead to data corruption. For a safe, more robust and rich persistence solution, please consider Jinbase.

Example

from shared import Dossier, HOME
from datetime import datetime
from pathlib import Path

# load a picture
with open("/home/alex/image.png", "rb") as file:
    photo = file.read()

# create a user profile dictionary embedding the picture
now = datetime.now()
profile = {"name": "alex", "access_datetime": now, "photo": photo,
           "pi": 3.14, "books": ["Seul sur Mars", "The Fall"],
           "is_author": True, "fingerprint": None}

# create a dossier (or access an existing one)
path = Path(HOME, "my_dossier")
dossier = Dossier(path)

# save profile dictionary in the dossier
dossier.set("my_profile", profile)

# retrieve profile dictionary
profile_bis = dossier.get("my_profile")

# let's compare the two profile objects !
assert profile == profile_bis  # True ;)
  • Jinbase: Multi-model transactional embedded database
  • LiteDBC: Lite database connector
  • KvF: The key-value file format with sections
  • Paradict: Streamable multi-format serialization with schema
  • Asyncpal: Preemptive concurrency and parallelism for sporadic workloads

Testing and contributing

Feel free to open an issue to report a bug, suggest some changes, show some useful code snippets, or discuss anything related to this project. You can also directly email me.

Setup your development environment

Following are instructions to setup your development environment

# create and activate a virtual environment
python -m venv venv
source venv/bin/activate

# clone the project then change into its directory
git clone https://github.com/pyrustic/shared.git
cd shared

# install the package locally (editable mode)
pip install -e .

# run tests
python -m tests

# deactivate the virtual environment
deactivate

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Installation

Shared is cross-platform. It is built on Ubuntu and should work on Python 3.5 or newer.

Create and activate a virtual environment

python -m venv venv
source venv/bin/activate

Install for the first time

pip install shared

Upgrade the package

pip install shared --upgrade --upgrade-strategy eager

Deactivate the virtual environment

deactivate

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About the author

Hello world, I'm Alex (😎️), a tech enthusiast and the architect of Pyrustic ! Feel free to get in touch with me !




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