https://github.com/kmedian/yearfrac

Difference between dates as a fraction of 1 year
https://github.com/kmedian/yearfrac

date-calculation day-count day-count-method icma isda pypi year-difference

Last synced: 2 days ago
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Difference between dates as a fraction of 1 year

• Host: GitHub
• URL: https://github.com/kmedian/yearfrac
• Owner: kmedian
• License: mit
• Created: 2018-09-01T08:07:30.000Z (about 6 years ago)
• Default Branch: main
• Last Pushed: 2023-05-09T08:55:04.000Z (over 1 year ago)
• Last Synced: 2024-10-29T06:06:27.807Z (19 days ago)
• Topics: date-calculation, day-count, day-count-method, icma, isda, pypi, year-difference
• Language: Python
• Homepage:
• Size: 54.7 KB
• Stars: 5
• Watchers: 3
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGES.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

Awesome Lists containing this project

README

        
[![PyPI version](https://badge.fury.io/py/yearfrac.svg)](https://badge.fury.io/py/yearfrac)

[![yearfrac](https://snyk.io/advisor/python/yearfrac/badge.svg)](https://snyk.io/advisor/python/yearfrac)

# yearfrac

## Installation

The `yearfrac` [git repo](http://github.com/kmedian/yearfrac) is available as [PyPi package](https://pypi.org/project/yearfrac)

```

pip install yearfrac

```

## Usage

Check the [examples](https://github.com/kmedian/yearfrac/tree/master/examples) folder for notebooks.

Functions

* `isaleapyear` -- Check if a year is leap year

* `eastersunday` -- Determine day and month of an Easter Sunday for a given year

* `jd_to_date` and `date_to_jd` -- Julian Day number conversion

* `act_afb` -- Actual/Actual AFB

* `act_isda` -- Actual/Actual ISDA

* `d30360e` -- 30E/360 ISDA daycount method

* `d30365` -- 30/365 daycount method

* `yearfrac` -- Wrapper for all daycount methods

## Appendix

### Install a virtual environment

```

python3.7 -m venv .venv

source .venv/bin/activate

pip3 install --upgrade pip

pip3 install -r requirements.txt

pip3 install -r requirements-dev.txt

pip3 install -r requirements-demo.txt

```

(If your git repo is stored in a folder with whitespaces, then don't use the subfolder `.venv`. Use an absolute path without whitespaces.)

### Python Commands

* Check syntax: `flake8 --ignore=F401 --exclude=$(grep -v '^#' .gitignore | xargs | sed -e 's/ /,/g')`

* Run Unit Tests: `python -W ignore -m unittest discover`

* Remove `.pyc` files: `find . -type f -name "*.pyc" | xargs rm`

* Remove `__pycache__` folders: `find . -type d -name "__pycache__" | xargs rm -rf`

Publish

```sh

# pandoc README.md --from markdown --to rst -s -o README.rst  # RST file is too much trouble

python setup.py sdist 

twine upload -r pypi dist/*

```

### Support

Please [open an issue](https://github.com/kmedian/yearfrac/issues/new) for support.

### Contributors

* Adam Groszer [@agroszer](https://github.com/agroszer)

* Emilio Basualdo [@emiliobasualdo](https://github.com/emiliobasualdo)

* Ivan Nesic [@fatkaratekid](https://github.com/fatkaratekid)

* Vinay Gupta [@vinschess](https://github.com/vinschess)

* Ulf Hamster [@ulf1](https://github.com/ulf1)

Please contribute using [Github Flow](https://guides.github.com/introduction/flow/). Create a branch, add commits, and [open a pull request](https://github.com/kmedian/yearfrac/compare/).