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election_map_tutorial's Issues

(Not) Running on MyBinder

A quick heads up that I've just tried running the election map demo tutorial on MyBinder (docs) and it's hitting a third party issue (this one?) in the third and fourth code cells when .to_crs() is called.

RuntimeError                              Traceback (most recent call last)
<ipython-input-3-4120ad92640f> in <module>
      1 precincts_gdf = gpd.read_file(PRECINCT_SHAPES_PATH, encoding='cp1252', mode='r')
----> 2 precincts_gdf = precincts_gdf.to_crs('+init=epsg:32613')
      3 print(precincts_gdf.columns)
      4 print(precincts_gdf.head()[['NAME10']])
      5 precincts_gdf.plot(alpha=1, edgecolor='black', color='None', linewidth=1)

/srv/conda/lib/python3.6/site-packages/geopandas/geodataframe.py in to_crs(self, crs, epsg, inplace)
    441         else:
    442             df = self.copy()
--> 443         geom = df.geometry.to_crs(crs=crs, epsg=epsg)
    444         df.geometry = geom
    445         df.crs = geom.crs

/srv/conda/lib/python3.6/site-packages/geopandas/geoseries.py in to_crs(self, crs, epsg)
    302             except TypeError:
    303                 raise TypeError('Must set either crs or epsg for output.')
--> 304         proj_in = pyproj.Proj(self.crs, preserve_units=True)
    305         proj_out = pyproj.Proj(crs, preserve_units=True)
    306         project = partial(pyproj.transform, proj_in, proj_out)

/srv/conda/lib/python3.6/site-packages/pyproj/__init__.py in __new__(self, projparams, preserve_units, **kwargs)
    360         # on case-insensitive filesystems).
    361         projstring = projstring.replace('EPSG','epsg')
--> 362         return _proj.Proj.__new__(self, projstring)
    363 
    364     def __call__(self, *args, **kw):

_proj.pyx in _proj.Proj.__cinit__()

RuntimeError: b'no arguments in initialization list'

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