pycodata 1.1.0a0

pycodata: CODATA constants for python.

Introduction

Python wrapper around the Fortran codata library. The Fortran library does not need to be installed, the python wrapper embeds all needed fortran dependencies for Windows and MacOS. On linux, you might have to install libgfortran if it is not distributed with your linux distribution.

Installation

In a terminal, enter:

pip install pycodata

Usage

The latest values (2022) do not have the year as a suffix in their name. Older values can be used and they feature the year as a suffix in their name.

The latest values are available at the top level and older values are available in dedicated modules.

import pycodata

print("########## VERSION ##########")
print(f"version = {pycodata.__version__}")

print("########## constants ##########")
print(f"c =", pycodata.SPEED_OF_LIGHT_IN_VACUUM["value"])

print("########## UNCERTAINTY ##########")
print(f"u(c) = ", pycodata.SPEED_OF_LIGHT_IN_VACUUM["uncertainty"])

print("########## OLDER VALUES ##########")
print(f"Mu_2022 = ", pycodata.MOLAR_MASS_CONSTANT["value"])
print(f"Mu_2018 = ", pycodata.constants_2018.MOLAR_MASS_CONSTANT_2018["value"])
print(f"Mu_2014 = ", pycodata.constants_2014.MOLAR_MASS_CONSTANT_2014["value"])
print(f"Mu_2010 = ", pycodata.constants_2010.MOLAR_MASS_CONSTANT_2010["value"])

License

MIT