geopandas bug ?

[duncan smith]

On 14/01/17 14:59, Xristos Xristoou wrote:
> Τη Σάββατο, 14 Ιανουαρίου 2017 - 4:38:39 μ.μ. UTC+2, ο χρήστης duncan smith έγραψε:
>> On 14/01/17 11:18, Xristos Xristoou wrote:
>>> i want  to create a simple spatial joing using geopandas but i thing so geopandas has bug ?
>>>
>>>
>>>
>>> geopandas code :
>>>
>>> from geopandas import gpd
>>> import geopandas
>>> points = geopandas.GeoDataFrame.from_file('points.shp') # or geojson etc
>>> polys = geopandas.GeoDataFrame.from_file('polygons.shp')
>>> pointInPoly = gpd.sjoin(points, polys, how='left',op='within')
>>>
>>> error :
>>>
>>> Traceback (most recent call last):
>>>   File "/home/sarantis/testshapely/sumpointsinsidepolygon/testgeo.py", line 7, in <module>
>>>     pointInPoly = gpd.sjoin(points, polys, how='left',op='within')
>>>   File "/usr/local/lib/python2.7/dist-packages/geopandas/tools/sjoin.py", line 57, in sjoin
>>>     r_idx = np.concatenate(idxmatch.values)
>>> ValueError: need at least one array to concatenate
>>>
>>> and if i change the imports with the some code :
>>>
>>> import geopandas
>>> import pandas as pd
>>> import geopandas as gpd
>>> from geopandas import GeoDataFrame, read_file
>>> from geopandas.tools import sjoin
>>> from shapely.geometry import Point, mapping,shape
>>> import pandas as gpd
>>>
>>> i take that error :
>>>
>>>     pointInPoly = gpd.sjoin(points, polys, how='left',op='within')
>>> AttributeError: 'module' object has no attribute 'sjoin'
>>>
>>>
>>> any idea why ?
>>>
>>
>>
>> import geopandas as gpd
>> import pandas as gpd
>>
>> Does pandas have an attribute 'sjoin'?
>>
>> Duncan
> 
> i dont know i follow detais i am newbie
> 

You import geopandas as gpd, then import pandas as gpd. So maybe you
think gpd refers to geopandas while it actually refers to pandas. I
don't know geopandas or pandas, but you should check your imports.

Duncan