poker_eval does not evaluate any iterations

Calling poker_eval always results in the winning hand to have a 100% equity, even when there are still cards to come. In the following example is an equity calculation of AA vs KK preflop. It only does one iteration and says AA has 100% equity.

IPython session:
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In [1]: from pokereval import PokerEval

In [2]: pe =PokerEval ()

In [3]: pe.poker_eval(game='holdem', pockets=[ ["Ah", "Ad"], ["Kh", "Ks"] ], board=[] )
Out[3]:
{'eval': [{'ev': 1000,
           'losehi': 0,
           'loselo': 0,
           'scoop': 1,
           'tiehi': 0,
           'tielo': 0,
           'winhi': 1,
           'winlo': 0},
          {'ev': 0,
           'losehi': 1,
           'loselo': 0,
           'scoop': 0,
           'tiehi': 0,
           'tielo': 0,
           'winhi': 0,
           'winlo': 0}],
 'info': (1, 0, 1)}
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Here is the output from the PokerStove appication:
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Text results appended to pokerstove.txt

  61,642,944 games 0.141 secs 437,183,999 games/sec

Board:
Dead:

 equity win tie pots won pots tied
Hand 0: 81.946% 81.71% 00.23% 50371344 142614.00 { AA }
Hand 1: 18.054% 17.82% 00.23% 10986372 142614.00 { KK }
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