import pywikibot

site = pywikibot.Site("wikidata", "wikidata")
repo = site.data_repository()
item = pywikibot.ItemPage(repo, "Q2225")

item_dict = item.get()
clm_dict = item_dict["claims"]
clm_list = clm_dict["P2069"]

for clm in clm_list:
    clm_trgt = clm.getTarget()
    print(clm_trgt.amount)
    print(clm_trgt.unit)
-1.00115965218076
http://www.wikidata.org/entity/Q737120