Possible pycamb persistence issue



In [1]:

    
from __future__ import print_function
import camb
print(camb.__version__)



In [2]:

    
test_z = 1100.

Param set 1



In [3]:

    
pars1 = camb.CAMBparams()
pars1.set_cosmology(H0=75.0,mnu=0.06)
pars1.InitPower.set_params()
results1 = camb.get_background(pars1)

We calculate comoving distance to test_z



In [4]:

    
chi1 = results1.comoving_radial_distance(test_z)
print("Comoving distance for param set 1 : ",chi1)









    



Comoving distance for param set 1 :  13597.074431119912

Param set 2



In [5]:

    
pars2 = camb.CAMBparams()
pars2.set_cosmology(H0=65.0,mnu=0.180)
pars2.InitPower.set_params()
results2 = camb.get_background(pars2)

We calculate comoving distance for this new cosmology



In [6]:

    
chi2 = results2.comoving_radial_distance(test_z)
print("Comoving distance for param set 2 : ",chi2)









    



Comoving distance for param set 2 :  13935.85748861403

Revisiting param set 1



In [7]:

    
chi1_again = results1.comoving_radial_distance(test_z)
print("Comoving distance for param set 1 : ",chi1_again)









    



Comoving distance for param set 1 :  13935.85748861403



In [8]:

    
assert chi1==chi1_again









    



---------------------------------------------------------------------------
AssertionError                            Traceback (most recent call last)
<ipython-input-8-b753887589dd> in <module>()
----> 1 assert chi1==chi1_again

AssertionError: