DateOnly 20

A Python C extension for encoding, decoding, and manipulating 20th-century dates with high performance. This module provides efficient functions for date encoding into a compact format, decoding back to standard date representations, and performing arithmetic operations like adding years, months, and days.

Features

• Encode Dates: Convert dates into a 16-bit integer representation.
• Decode Dates: Retrieve standard date components from the encoded format.
• Date Arithmetic: Add years, months, and days while handling overflow correctly.
• Date Parsing: Convert dates from the YYYY-MM-DD string format into the encoded format.
• ISO String Conversion: Easily convert encoded dates back to YYYY-MM-DD format.

Installation

To install the module, clone the repository and run the following based on the scenario:

Prod usage

pip install dateonly-20

Test and debug

python setup.py build_ext --inplace   # Compile C code
python setup.py install               # Install the module

Usage

Here’s a simple example of how to use the module:

import dateonly_20

# Encode a date
encoded = dateonly_20.encode_date(2023, 11, 3)

# Decode the encoded date
year, month, day = dateonly_20.decode_date(encoded)

# Add 1 year, 2 months, and 15 days to the encoded date
new_date = dateonly_20.add_date(encoded, 1, 2, 15)

# Convert the encoded date to a string in YYYY-MM-DD format
date_str = dateonly_20.date_to_iso_string(encoded)