title: Geopandas Spatial Joins - unable to import geopandas.tools
body: <p>I currently do my GIS work in Python using a combination of Pandas and ArcPy. I recently heard of Geopandas and am interested in learning to use this as an alternative to ArcPy for basic geoprocessing operations (spatial joining points to polygons, intersecting polygons, etc). </p>
  
  <p>I've installed Geopandas and its dependencies (gdal, shapely, fiona, and pyproj).</p>
  
  <p>I found a Geopandas tutorial on spatial joins (<a href="http://nbviewer.ipython.org/github/geopandas/geopandas/blob/master/examples/spatial_joins.ipynb" rel="nofollow">http://nbviewer.ipython.org/github/geopandas/geopandas/blob/master/examples/spatial_joins.ipynb</a>), which I've been trying to follow under "Spatial Joins between two GeoDataFrames". </p>
  
  <p>The first 4 lines import the necessary modules:</p>
  
  <pre><code>import os 
  from shapely.geometry import Point
  from geopandas import GeoDataFrame, read_file
  from geopandas.tools import overlay
  </code></pre>
  
  <p>3 of these lines run successfully, but the 4th does not. I receive the following import error: "ImportError: No module named tools"</p>
  
  <p>Any suggestions as to what is going wrong? Could it be an error with the installation of the dependencies? </p>
  
  <p>Thanks for the help!</p>