无法导入graphlab.aggregate

Question

我正在尝试

import graphlab.aggregate as agg

在Jupyter笔记本中，并出现以下错误

AttributeError                            Traceback (most recent call last)
<ipython-input-8-c297bc9d9965> in <module>()
----> 1 import graphlab.aggregate as agg

/Users/hectormehta/venv/lib/python2.7/site-packages/graphlab/__init__.py in <module>()
     48 from graphlab.util import set_runtime_config
     49 
---> 50 import graphlab.connect as _mt
     51 import graphlab.connect.aws as aws
     52 from . import visualization

AttributeError: 'module' object has no attribute 'connect'

该如何解决？

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