gistfile1.py

import thermopy.burcat as thermopy
import CoolProp.CoolProp as coolprop
import cantera as ct

def thermopy_cp():
    db = thermopy.Elementdb()
    return db.getelementdata('AIR').cp_(300)

def cantera_cp():
    gas = ct.Solution('gri30.xml')
    gas.TPX = 300.0, 101325, 'N2:3.76,O2:1'
    return gas.cp

def coolprop_cp():
    return coolprop.PropsSI('C','P',101325,'T',300,'Air.mix')

print(thermopy_cp(), cantera_cp(), coolprop_cp())