title: Importing Pandas gives error AttributeError: module 'pandas' has no attribute 'core' in iPython Notebook
body: <p>I am running a iPython notebook via the Anaconda Navigator app (version 1.1.0).
  When I want to import pandas it gives me a strange error. I thought the Anaconda app included the pandas package?</p>
  
  <pre><code>---------------------------------------------------------------------------
  AttributeError                            Traceback (most recent call last)
  &lt;ipython-input-4-af55e7023913&gt; in &lt;module&gt;()
  ----&gt; 1 import pandas as pd
  
  /Users/bertcarremans/anaconda/lib/python3.5/site-packages/pandas/__init__.py in &lt;module&gt;()
   37 import pandas.core.config_init
   38 
  ---&gt; 39 from pandas.core.api import *
   40 from pandas.sparse.api import *
   41 from pandas.stats.api import *
  
  /Users/bertcarremans/anaconda/lib/python3.5/site-packages/pandas/core/api.py in &lt;module&gt;()
    8 from pandas.core.common import isnull, notnull
    9 from pandas.core.categorical import Categorical
  ---&gt; 10 from pandas.core.groupby import Grouper
   11 from pandas.core.format import set_eng_float_format
   12 from pandas.core.index import (Index, CategoricalIndex, Int64Index,
  
  /Users/bertcarremans/anaconda/lib/python3.5/site-packages/pandas/core/groupby.py in &lt;module&gt;()
   16                               DataError, SpecificationError)
   17 from pandas.core.categorical import Categorical
  ---&gt; 18 from pandas.core.frame import DataFrame
   19 from pandas.core.generic import NDFrame
   20 from pandas.core.index import (Index, MultiIndex, CategoricalIndex,
  
  /Users/bertcarremans/anaconda/lib/python3.5/site-packages/pandas/core/frame.py in &lt;module&gt;()
   37                                    create_block_manager_from_arrays,
   38                                    create_block_manager_from_blocks)
  ---&gt; 39 from pandas.core.series import Series
   40 from pandas.core.categorical import Categorical
   41 import pandas.computation.expressions as expressions
  
  /Users/bertcarremans/anaconda/lib/python3.5/site-packages/pandas/core/series.py in &lt;module&gt;()
   33 from pandas.core.internals import SingleBlockManager
   34 from pandas.core.categorical import Categorical, CategoricalAccessor
  ---&gt; 35 import pandas.core.strings as strings
   36 from pandas.tseries.common import (maybe_to_datetimelike,
   37                                    CombinedDatetimelikeProperties)
  
  AttributeError: module 'pandas' has no attribute 'core'
  </code></pre>