isdayoff-api 1.1.0

Checking the date for belonging to a non-working day, according to official decrees and orders.

🗓️ isdayoff-api

Production Calendar API Client

🐍 Async + Sync Python client for isdayoff.ru – production calendar data for 7 countries.

Check if a date is a working day, a day off, or a shortened day according to official government decrees.

This is a fork of the original kobylinsky-m/isdayoff.

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📦 Installation

pip install isdayoff-api

Requires Python 3.11+.

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🚀 Quick Start

Async (recommended)

import asyncio
from isdayoff import DateType, ProdCalendar


async def main():
    async with ProdCalendar(locale="us") as calendar:
        if await calendar.today() == DateType.WORKING:
            print("Today is a working day ✅")
        else:
            print("Today is a day off 🎉")


asyncio.run(main())

Sync

from isdayoff import DateType, SyncProdCalendar


with SyncProdCalendar(locale="us") as calendar:
    if calendar.today() == DateType.WORKING:
        print("Today is a working day ✅")
    else:
        print("Today is a day off 🎉")

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🌍 Supported Locales

Code	Country
ru	Russia
kz	Kazakhstan
by	Belarus
us	United States
uz	Uzbekistan
tr	Turkey
lv	Latvia

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📖 API Reference

All methods are available on both ProdCalendar (async) and SyncProdCalendar (sync).

Parameters

Parameter	Type	Default	Description
locale	str	"ru"	Country code
pre	bool	False	Mark shortened pre‑holiday days
covid	bool	False	Mark working days due to COVID‑19
sd	bool	False	Consider 6‑day work week

Methods

# ── Async ──
await calendar.today(locale="ru", pre=True, covid=True, sd=True)
await calendar.tomorrow()
await calendar.date(date(2024, 8, 25))
await calendar.month(date(2024, 8, 1))
await calendar.year(date(2024, 1, 1))
await calendar.range_date(date(2024, 1, 1), date(2024, 5, 1))
calendar.is_leap(date(2024, 1, 1))

# ── Sync ──
calendar.today(locale="ru", pre=True, covid=True, sd=True)
calendar.tomorrow()
calendar.date(date(2024, 8, 25))
calendar.month(date(2024, 8, 1))
calendar.year(date(2024, 1, 1))
calendar.range_date(date(2024, 1, 1), date(2024, 5, 1))
calendar.is_leap(date(2024, 1, 1))

Return Types

Method	Returns
today() / tomorrow() / date()	DateType (enum)
month() / year() / range_date()	dict[str, DateType] — ISO date → type
is_leap()	bool

DateType Enum

Value	Meaning
DateType.WORKING (0)	Working day
DateType.NOT_WORKING (1)	Day off / holiday
DateType.SHORTENED (2)	Shortened pre‑holiday day
DateType.WORKING_DAY (4)	Working day (special period, e.g. COVID)

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📋 Full Example

import asyncio
from datetime import date
from isdayoff import DateType, ProdCalendar


async def main():
    async with ProdCalendar(locale="us") as calendar:
        month_data = await calendar.month(date(2024, 8, 1), locale="ru")
        days_off = sum(1 for v in month_data.values() if v == DateType.NOT_WORKING)
        print(f"Days off in August 2024 (RU): {days_off}")


asyncio.run(main())

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🛠 Development

# Install dependencies
uv sync

# Run unit tests (mocked, no API calls)
uv run pytest

# Run integration tests (real API calls)
uv run pytest -m integration

# Build package
uv build

Test Suite

Type	Count	Command
🔬 Unit	40	uv run pytest
🌐 Integration	8	uv run pytest -m integration

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🔗 Links

• Original project: kobylinsky-m/isdayoff
• API documentation: isdayoff.ru/docs
• Database of countries: isdayoff.ru/db
• PyPI: isdayoff-api

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📄 License

MIT

© 2021 Maxim Kobylinsky (original author) · © 2026 Aleksandr Bevz

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Data provided by isdayoff.ru