Estimated reading time: 1 minute 
import quantecon as qe


### I don't recommend pyliferisk

import pyliferisk.lifecontingencies as lc
from pyliferisk.mortalitytables import SPAININE2004

tariff=lc.MortalityTable(nt=SPAININE2004)
experience=lc.MortalityTable(nt=SPAININE2004,perc=85)

# Print the omega (limiting age) of the both mortality tables:
print(tariff.w)
print(experience.w)

# Print the qx at 50 years old:
## QX is the rate of mortality.
print(tariff.qx[50])
print(experience.qx[50])

101
102
3.113
2.6460500000000002

from pyliferisk.lifecontingencies import Actuarial
from pyliferisk.mortalitytables import SPAININE2004, GKM95

mt=Actuarial(nt=SPAININE2004,i=0.02)
lc.annuity(mt,50,10,12,['g',0.03],-15)

---------------------------------------------------------------------------

NameError                                 Traceback (most recent call last)

<ipython-input-9-7e45544755e0> in <module>()
      3 
      4 mt=Actuarial(nt=SPAININE2004,i=0.02)
----> 5 lc.annuity(mt,50,10,12,['g',0.03],-15)


~/anaconda/envs/py36/lib/python3.6/site-packages/pyliferisk/lifecontingencies.py in annuity(mt, x, n, p, m, *args)
    450     wh_l = False
    451 
--> 452     if isinstance(n,basestring) or n == 99:
    453         wh_l = True
    454     else:


NameError: name 'basestring' is not defined