Estou tentando importar seaborn para python (usando 2.7) usando o seguinte código:

import matplotlib.pyplot as plt
import seaborn as sns
import pandas as pd
import numpy as np
import math as math
from pylab import rcParams

%matplotlib inline

e recebendo a seguinte mensagem de erro:

ImportError                               Traceback (most recent call last)
<ipython-input-62-bd3d27f3b137> in <module>()
      1 import matplotlib.pyplot as plt
----> 2 import seaborn as sns
      3 import pandas as pd
      4 import numpy as np
      5 import math as math

C:\Python27\lib\site-packages\seaborn\__init__.py in <module>()
      2 from .utils import *
      3 from .palettes import *
----> 4 from .linearmodels import *
      5 from .distributions import *
      6 from .timeseries import *

C:\Python27\lib\site-packages\seaborn\linearmodels.py in <module>()
     19 from .external.six.moves import range
     20 
---> 21 from . import utils
     22 from . import algorithms as algo
     23 from .palettes import color_palette

ImportError: cannot import name utils

Alguém pode ajudar com isso? Eu tentei olhar através deste site e também do Google, mas sem sorte. Desde já, obrigado.