Test the time difference between directly accessing properties on a nested object, vs saving an intermediate variable.

timing.py

# importing the required module 
import timeit

# code snippet to be executed only once 
setup = """
class FauxClass(object):
    pass

page = FauxClass()
page.url = 'the url'
page.owner = FauxClass()
page.owner.name = 'the name'
"""

# direct property access 
code_01 = """ 
temp = '{name} published {url}'.format(
    name=page.owner.name,
    url=page.url,
)
"""

# intermediate variable
code_02 = """ 
owner = page.owner
temp = '{name} published {url}'.format(
    name=owner.name,
    url=page.url,
)
"""

# timeit statement 
print timeit.timeit(setup=setup, stmt=code_01, number=100000)
print timeit.timeit(setup=setup, stmt=code_02, number=100000)

$ python timing.py
0.0514490604401
0.0502469539642