We are going to make so many relativity-nerds "not" happy because of the simplicity :D
import sympy
from einsteinpy.symbolic import SchwarzschildMetric, EinsteinTensor
m = SchwarzschildMetric()
G1 = EinsteinTensor.from_metric(m)
print(G1.arr)
Assim o nerd em mim não fica feliz... :-(