Projects on Juan Reyero

dated-money

Tue, 28 Jan 2025 00:00:00 +0000

A Python library for date-aware currency operations

Updated 2025-08-15: v2.x with DM factory, robust fallback for historical rates, and SQLite/PostgreSQL serialization helpers.

dated-money represents monetary values with an optional date and performs conversions using historical exchange rates with automatic fallback.

https://github.com/juanre/dated-money

Installation

uv add dated-money

pip install dated-money

Quickstart

from dated_money import DM, DatedMoney, Currency

# Factory: default currency/date
Eur = DM('EUR', '2024-01-01')

# Create amounts
price = Eur(100) # €100.00
from_usd = Eur(50, '$') # $50 → EUR (on 2024-01-01)

# Arithmetic: result in the second operand's currency/date
a = DatedMoney(100, 'EUR', '2024-01-01')
b = DatedMoney(50, 'USD', '2024-01-01')
res = a + b # result in USD on 2024-01-01

# Convert and format
print(res.to('EUR')) # €...
print(str(res)) # e.g. $... (rounded to cents)
print(repr(res)) # '2024-01-01 USD ...' (parseable)

# Parse from repr
parsed = DatedMoney.parse('2024-01-01 EUR 100.50')
assert parsed == DatedMoney(100.50, 'EUR', '2024-01-01')

Notes:

pgdbm

Wed, 13 Aug 2025 00:00:00 +0000

A PostgreSQL async library for modular applications

pgdbm allows you to build database-backed libraries that work in any deployment context.

Most DB tools assume the application owns the database. pgdbm is designed for building libraries that have their own tables and migrations, and that work identically whether running standalone as a service or embedded in a larger application sharing a connection pool.

Built on asyncpg, it gives you:

Connection pooling with retries and backoff
Schema-aware SQL templating ({{tables.users}}) for portable queries
A migration system with per-module isolation and checksums
Transaction management with savepoint support
Optional monitoring (slow queries, pool stats, EXPLAIN)
Testing utilities (ephemeral DBs, fixtures, isolation)
A CLI for migrations and database management

magnitude

Sat, 07 Nov 2009 00:00:00 +0000

A Python library for computing with units

Updated 2025-01-28: magnitude has been modernized with full type hints, improved error handling, and is available on PyPI.

magnitude implements efficient computation with values with units. It allows you to do mathematical operations with them as if they were numbers, taking care of the units behind the scenes.

Units are specified as strings. They can be any of the SI units, plus a bunch of non-SI, bits, dollars, and any combination of them. They can include the standard SI prefixes. magnitude can operate with physical quantities, parse their units, and print them. You don’t have to worry about unit consistency or conversions; everything is handled transparently.

llmbridge

Wed, 13 Aug 2025 00:00:00 +0000

Superseded by llmring

llmbridge has been superseded by llmring, which provides a cleaner architecture without database dependencies.

llmring offers:

Alias-based routing with lockfiles
Registry-driven model discovery
No database requirement
Better separation of concerns

Please see the llmring documentation for the new approach.

PyPI: https://pypi.org/project/llmring/

llmring ⭕

Wed, 20 Aug 2025 00:00:00 +0000

Alias-first LLM routing with lockfiles

llmring decouples code from model IDs. Instead of hardcoding “gpt-4o”, you use aliases like “fast” or “smart” that resolve through a lockfile, like package managers pin dependencies. It is also a unified SDK to talk to Anthropic, Google, Ollama and OpenAI.

Project resources

Main site: https://llmring.ai - Documentation and guides
Registry: https://llmring.github.io/registry/ - Live model capabilities and pricing
Source: https://github.com/juanre/llmring - Python package

Core architecture

The system has three independent layers:

org-jekyll.el

Sun, 27 Dec 2009 00:00:00 +0000

Note: This project is no longer actively maintained (last updated 2014). For current alternatives, please consider:

ox-jekyll - Org Mode export backend for Jekyll

org-jekyll-mode - Emacs extensions for writing Jekyll posts with org-mode

jekyll-org - Jekyll with Emacs Org-Mode integration

Export jekyll blog posts from org-mode

Extracts subtrees from your org-publish project files that have a :blog: keyword and an :on: property with a timestamp, and exports them to a subdirectory _posts of your project’s publishing directory in the year-month-day-title.html format that Jekyll expects. Properties are passed over as yaml front-matter in the exported files. The title of the entry is the title of the subtree.

ox-leanpub.el

Mon, 27 Jan 2014 00:00:00 +0000

A leanpub-optimized markdown exporter for org-mode

Note: This is the original ox-leanpub exporter that I created in 2014. The project has since been taken over by Diego Zamboni.

Original code (this page): github.com/juanre/ox-leanpub

Current maintained version: github.com/zzamboni/ox-leanpub

For new projects, please use Diego’s version which has many improvements and is actively maintained.

I am writing a book in orgmode with plenty of code snippets and their output. In order to make it available on Leanpub I needed to export to markdown. The default exporter, ox-md, produces basic markdown, which does not take advantage of the capabilities that Leanpub offers, and cannot distinguish between code and output.