Python 从地址生成纬度/经度点

Question

如何在 python 中获取地址并从中生成经纬度坐标？我有几个地址，我想获得经纬度点，但似乎不起作用。

我使用了 geopandas，但它没有返回任何结果。我也对 user_agent 使用什么感到困惑。这是我的代码，

import pandas as pd
from geopy.geocoders import Nominatim

df2['location_lat'] = ""
df2['location_long'] = ""

geolocator = Nominatim(user_agent="myApp")

for i in df2.index:
    try:
        #tries fetch address from geopy
        location = geolocator.geocode(df2['Location'][i])
        
        #append lat/long to column using dataframe location
        df2.loc[i,'location_lat'] = location.latitude
        df2.loc[i,'location_long'] = location.longitude
  
    except:
        #catches exception for the case where no value is returned
        #appends null value to column
        df2.loc[i,'location_lat'] = ""
        df2.loc[i,'location_long'] = ""
   

感谢任何帮助。谢谢。

Answer 1

您可以直接在 DataFrame 列上使用 apply:

import pandas as pd
from geopy.geocoders import Nominatim

geolocator = Nominatim(user_agent="myApp")

df2 = pd.DataFrame({'Location':
            ['2094 Valentine Avenue,Bronx,NY,10457',
             '1123 East Tremont Avenue,Bronx,NY,10460',
             '412 Macon Street,Brooklyn,NY,11233']})

df2[['location_lat', 'location_long']] = df2['Location'].apply(
    geolocator.geocode).apply(lambda x: pd.Series(
        [x.latitude, x.longitude], index=['location_lat', 'location_long']))

它应该给出:

                                  Location  location_lat  location_long
0     2094 Valentine Avenue,Bronx,NY,10457     40.852905     -73.899665
1  1123 East Tremont Avenue,Bronx,NY,10460     40.840130     -73.876245
2       412 Macon Street,Brooklyn,NY,11233     40.682651     -73.934353