Loading JSON into a GeoDataFrame

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旧时难觅i
旧时难觅i 2021-02-07 17:48

I\'m having difficulty loading the following JSON containing GIS data (https://data.cityofnewyork.us/resource/5rqd-h5ci.json) into a GeoDataFrame.

The following code fai

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  •  太阳男子
    2021-02-07 18:33

    Setting the geometry fails because the geopandas.GeoDataFrame constructor doesn't appear to be built to handle JSON objects as python data structures. It therefore complains about the argument not being a valid geometry object. You have to parse it into something that geopandas.GeoDataFrame can understand, like a shapely.geometry.shape. Here's what ran without error on my side, Python 3.5.4:

    #!/usr/bin/env python3
    
    import requests
    import geopandas as gpd
    from shapely.geometry import shape
    
    r = requests.get("https://data.cityofnewyork.us/resource/5rqd-h5ci.json")
    r.raise_for_status()
    
    data = r.json()
    for d in data:
        d['the_geom'] = shape(d['the_geom'])
    
    gdf = gpd.GeoDataFrame(data).set_geometry('the_geom')
    gdf.head()
    

    A disclaimer: I know absolutely nothing about Geo anything. I didn't even know these libraries and this kind of data existed until I installed geopandas to tackle this bounty and read a little bit of online documentation.

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