gistfile1.py

>>> abc = {}
>>> for k, v in resp.cookies.items():
...     if k in abc:
...         abc[k].append(v)
...     else:
...         abc[k] = [v]
... 
>>> abc
{'statid': ['32dbb464d0bc217e5580f05bce4ca632:c5b35d:1400098838:v3', '32dbb464d0bc217e5580f05bce4ca632:c5b35d:1400098838:v3'], 'reksticket': ['1400098838'], 'rekticket': ['1400098838']}

gistfile2.py

>>> cba = {}
>>> for k, v in resp.cookies.items():
...     cba.setdefault(k, []).append(v)
... 
>>> cba
{'statid': ['32dbb464d0bc217e5580f05bce4ca632:c5b35d:1400098838:v3', '32dbb464d0bc217e5580f05bce4ca632:c5b35d:1400098838:v3'], 'reksticket': ['1400098838'], 'rekticket': ['1400098838']}