multi-calendar-dimension 1.0.4

A comprehensive library for Persian (Jalali), Gregorian, and Hijri calendar operations including date conversion, dimension generation, and current date information

Multi-Calendar Dimension Library

A comprehensive Python library for Persian (Jalali), Gregorian, and Hijri calendar operations including date conversion, dimension generation, and current date information.

Features

📅 Multi-Calendar Support

• Persian (Jalali) Calendar: Complete support with leap year calculations
• Gregorian Calendar: Standard Western calendar
• Hijri (Islamic) Calendar: Islamic lunar calendar with astronomical calculations

🔄 Date Conversion

• Convert between all calendar types (6 conversion combinations)
• Accurate astronomical calculations for Hijri calendar
• Support for leap years in all calendars

📊 Date Dimension Generation

• Generate comprehensive date dimension tables
• Include events, holidays, and weekend information
• Support for annual and monthly ranges
• Export to Excel, CSV, or DataFrame formats

📍 Current Date Information

• Get today's date in all calendars
• Event and holiday information
• Weekend and holiday status
• Multiple formatting options

🎉 Events & Holidays

• Persian Events: 176+ Persian events and holidays
• Gregorian Events: 488+ international events (English & Persian)
• Hijri Events: Complete Islamic calendar events
• Variable Holidays: Easter, Thanksgiving, and other calculated holidays

Installation

pip install multi-calendar-dimension

Quick Start

Basic Date Conversion

from multi_calendar_dimension import jalali_to_gregorian, gregorian_to_hijri

# Convert Persian to Gregorian
gy, gm, gd = jalali_to_gregorian(1403, 1, 1)
print(f"1 Farvardin 1403 = {gy}-{gm:02d}-{gd:02d}")

# Convert Gregorian to Hijri
hy, hm, hd = gregorian_to_hijri(2024, 3, 20)
print(f"20 March 2024 = {hd}/{hm}/{hy} Hijri")

Generate Date Dimension Table

from multi_calendar_dimension import DateDimensionGenerator, DateDimensionConfig

# Create configuration
config = DateDimensionConfig(
    start_year=1400,
    end_year=1410,
    include_events=True,
    include_holidays=True
)

# Generate table
generator = DateDimensionGenerator(config)
df = generator.to_dataframe()

# Export to Excel
filename = generator.to_excel("my_date_dimension.xlsx")
print(f"Generated: {filename}")

Monthly Range Generation

from multi_calendar_dimension import DateRangeGenerator, DateRangeConfig, CalendarType

# Generate Persian calendar range
config = DateRangeConfig(
    calendar_type=CalendarType.JALALI,
    start_year=1403,
    start_month=1,
    end_year=1403,
    end_month=6
)

generator = DateRangeGenerator(config)
df = generator.to_dataframe()
print(f"Generated {len(df)} days for Persian calendar range")

Current Date Information

from multi_calendar_dimension import CurrentDate

# Get today's information
current = CurrentDate()
today = current.now()

print(f"Persian: {today.jalali.date_string}")
print(f"Gregorian: {today.gregorian.date_string}")
print(f"Hijri: {today.hijri.date_string}")

# Check if today is a holiday
if today.jalali.is_holiday:
    print("Today is a holiday!")
    print(f"Events: {today.jalali.events}")

API Reference

Converters

Jalali (Persian) Calendar

• jalali_to_gregorian(jy, jm, jd) - Convert Persian to Gregorian
• gregorian_to_jalali(gy, gm, gd) - Convert Gregorian to Persian
• is_leap_year_persian(year) - Check if Persian year is leap

Hijri Calendar

• gregorian_to_hijri(gy, gm, gd) - Convert Gregorian to Hijri
• hijri_to_gregorian(hy, hm, hd) - Convert Hijri to Gregorian
• is_hijri_leap(year) - Check if Hijri year is leap

Cross Conversions

• jalali_to_hijri(jy, jm, jd) - Convert Persian to Hijri
• hijri_to_jalali(hy, hm, hd) - Convert Hijri to Persian

Generators

DateDimensionGenerator

config = DateDimensionConfig(
    start_year=1400,
    end_year=1410,
    include_events=True,
    include_holidays=True,
    include_week_calculations=True
)

generator = DateDimensionGenerator(config)
df = generator.generate()
excel_file = generator.to_excel()
csv_file = generator.to_csv()

DateRangeGenerator

config = DateRangeConfig(
    calendar_type=CalendarType.JALALI,
    start_year=1403,
    start_month=1,
    end_year=1403,
    end_month=12
)

generator = DateRangeGenerator(config)
df = generator.generate()
summary = generator.get_summary()

Current Date

CurrentDate

current = CurrentDate()

# Get today's information
today = current.now(language='fa')  # or 'en'

# Get specific date information
date_info = current.get_date_info(1403, 1, 1, 'jalali')

# Format date
formatted = current.format_date(date_info, 'full')

Data Structure

The generated date dimension tables include the following columns:

Persian (Jalali) Columns

• shamsi_date - Date as integer (YYYYMMDD)
• shamsi_date_title - Formatted date string
• shamsi_month_id - Month identifier
• shamsi_month_title - Month name with year
• shamsi_season_title - Season name
• shamsi_day_of_week_title - Day of week in Persian
• shamsi_event_name - Persian events
• shamsi_is_holiday - Holiday status
• shamsi_is_weekend - Weekend status

Gregorian Columns

• miladi_date - Date as string (YYYY-MM-DD)
• gregorian_month_title - Month name with year
• gregorian_season_title - Season name
• gregorian_day_of_week_title - Day of week in English
• gregorian_event_name_en - English events
• gregorian_event_name_fa - Persian events
• gregorian_is_holiday - Holiday status
• gregorian_is_weekend - Weekend status

Hijri Columns

• hijri_date - Date as integer (YYYYMMDD)
• hijri_date_title - Formatted date string
• hijri_month_title - Month name with year
• hijri_event_name - Hijri events
• hijri_is_holiday - Holiday status

Examples

Example 1: Generate 10 Years of Data

from multi_calendar_dimension import DateDimensionGenerator, DateDimensionConfig

config = DateDimensionConfig(start_year=1400, end_year=1410)
generator = DateDimensionGenerator(config)
df = generator.to_dataframe()

print(f"Generated {len(df):,} days")
print(f"Columns: {len(df.columns)}")
print(df.head())

Example 2: Convert Specific Dates

from multi_calendar_dimension import jalali_to_gregorian, gregorian_to_hijri

# Persian New Year 1403
gy, gm, gd = jalali_to_gregorian(1403, 1, 1)
print(f"Persian New Year 1403 = {gy}-{gm:02d}-{gd:02d}")

# Convert to Hijri
hy, hm, hd = gregorian_to_hijri(gy, gm, gd)
print(f"Same date in Hijri = {hd}/{hm}/{hy}")

Example 3: Check Today's Events

from multi_calendar_dimension import CurrentDate

current = CurrentDate()
today = current.now()

print(f"Today is {today.jalali.date_string}")
print(f"Persian month: {today.jalali.month_name}")
print(f"Day of week: {today.jalali.day_of_week}")

if today.jalali.events:
    print("Today's events:")
    for event in today.jalali.events:
        print(f"- {event}")

if today.jalali.is_holiday:
    print("Today is a holiday!")

Requirements

• Python 3.8+
• pandas >= 2.0.0
• openpyxl >= 3.1.0
• skyfield >= 1.46
• numpy >= 1.21.0

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• Persian calendar algorithms based on established astronomical calculations
• Hijri calendar conversion using Skyfield astronomical library
• Event and holiday data compiled from official sources
• Inspired by data warehousing date dimension best practices