pactole 0.4.0

A library for managing lottery results.

Pactole

A Python library for managing lottery results.

This is the Python version. A TypeScript version is also available: pactole-js.

Installation

Add pactole to your project:

pip install -U pactole

Or with uv:

uv add -U pactole

Documentation

See the complete documentation index: Documentation. It's also published on ReadTheDocs: pactole.readthedocs.io.

Requirements

Requires Python 3 (version 3.10 or newer).

Usage

import pactole

What you can do with Pactole

With built-in lottery classes (EuroMillions, EuroDreams), you can:

• Compute last/next draw dates from any date.
• Build validated tickets from numbers or component ranks.
• Generate random ticket batches (generate) with optional rank-space partitioning.
• Query and export historical draws (get_records, count, dump).
• Search historical results for a ticket and filter by winning rank (find_records).

EuroMillions: plan, generate, and analyze

from datetime import date

from pactole import EuroMillions

lottery = EuroMillions()
today = date(2026, 2, 19)

# 1) Plan around draw days
print(lottery.draw_days.days)
print(lottery.get_last_draw_date(from_date=today))
print(lottery.get_next_draw_date(from_date=today))

# 2) Build a ticket from user input
ticket = lottery.get_combination(numbers=[3, 15, 22, 28, 44], stars=[2, 9])
print(ticket.numbers.values, ticket.stars.values, ticket.rank)

# 3) Generate candidate tickets for the next draw
# partitions spreads picks across slices of the full rank space
suggested = lottery.generate(n=6, partitions=3)
for candidate in suggested:
    print(candidate)

# 4) Inspect history and evaluate your ticket
total_records = lottery.count()
records = list(lottery.get_records())
matches = list(lottery.find_records(ticket))

print(total_records, len(records), len(matches))

# Optional: keep only rank 4 (strict) or better than/equal to rank 4 (non-strict)
exact_rank_4 = list(lottery.find_records(ticket, target_rank=4, strict=True))
at_least_rank_4 = list(lottery.find_records(ticket, target_rank=4, strict=False))
print(len(exact_rank_4), len(at_least_rank_4))

EuroDreams: same workflow, different components

from datetime import date

from pactole import EuroDreams

lottery = EuroDreams()
today = date(2026, 2, 19)

# Draw planning
print(lottery.get_last_draw_date(from_date=today))
print(lottery.get_next_draw_date(from_date=today))

# Ticket creation (numbers + dream)
ticket = lottery.get_combination(numbers=[2, 3, 5, 7, 9, 38], dream=[3])
print(ticket.numbers.values, ticket.dream.values, ticket.rank)

# Ticket suggestions
combinations = lottery.generate(n=3)
print(combinations)

# History lookup for this ticket
records = list(lottery.get_records())
matches = list(lottery.find_records(ticket))
print(len(records), len(matches))

Useful API methods at a glance

• get_last_draw_date(from_date=...) / get_next_draw_date(from_date=...): draw-day planning.
• get_combination(...): build a validated game-specific ticket.
• generate(n=..., partitions=...): create random tickets.
• count(): total number of cached draw records.
• get_records(force=False): iterate over structured DrawRecord objects.
• dump(force=False): export raw dictionary rows (ready for tools like Pandas).
• find_records(..., target_rank=..., strict=...): search matches in history.

See detailed usage guides:

• Combinations
• Lottery classes

Environment variables

Built-in lotteries and providers can be configured with environment variables.

• PACTOLE_CACHE_ROOT
• FDJ_ARCHIVES_PAGE_URL
• EUROMILLIONS_PROVIDER_CLASS, EUROMILLIONS_DRAW_DAYS, EUROMILLIONS_DRAW_DAY_REFRESH_TIME, EUROMILLIONS_CACHE_NAME, EUROMILLIONS_ARCHIVES_PAGE
• EURODREAMS_PROVIDER_CLASS, EURODREAMS_DRAW_DAYS, EURODREAMS_DRAW_DAY_REFRESH_TIME, EURODREAMS_CACHE_NAME, EURODREAMS_ARCHIVES_PAGE

See the full reference with defaults and behavior: Environment variables.

Changes

For the changelog, see CHANGELOG.md.

License

MIT License - See LICENSE file for details.