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.
In a terminal, enter:
pip install pycodataThe 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"])MIT
