Python 获取 Geopy 中每个经纬度坐标的州区和州列

Question

我有一个包含 200 多个纬度和经度坐标对的列表。

对于每个坐标对，我想创建一个包含列区和列状态的数据框。所以我的数据框将有 3 列 cord, district and state。

为此，我正在使用 geopy 库，但我无法获得超过 115 个坐标的记录。

示例数据

    cord
0   (19.4, 17.93)
1   (55.54, 93.93)
2   (52.45, 78.93)
3   (65.54, 67.93)
4   (47.74, 99.93)

需要输出演示

    cord        district    state
0   (19.4, 17.93)   xyz      aaa
1   (55.54, 93.93)  adc      aaa
2   (52.45, 78.93)  gyu      drt
3   (65.54, 67.93)  www      bhn
4   (47.74, 99.93)  ccf      bvg

我试过这段代码，但无法获取超过 115 个查询的详细信息。

from geopy.geocoders import Nominatim
district = {} # Initialize empty dict
geo_loc # List containing all the codrinates in this format (lat, long)
for cord in geo_loc:
    geolocator = Nominatim(user_agent='user_agent')
    location = geolocator.reverse(cord, addressdetails=True)
    district[cord] = location.raw['address']['state_district']

I need to fetch maximum of 500 unique coordinates at one time.
Also I need district and state name both in separate columns.

Answer 1

从 Nominatim Usage Policy 他们要求不要大量使用，即每秒最多 1 个请求。 “没有大量使用（每秒绝对最多 1 个请求）。” 您可以使用 geopy 的 RateLimiter 每秒发送 1 个请求。我已经测试了以下代码适用于超过 115 个请求：

from geopy.extra.rate_limiter import RateLimiter
from geopy.geocoders import Nominatim
import pandas as pd
geolocator = Nominatim(user_agent="user_agent")
# add rate limit
reverse = RateLimiter(geolocator.reverse, min_delay_seconds=1)
state_list = [] # Initialize empty dict
# create dataframe
df = pd.DataFrame({"geo_loc"  :[(19.4, 17.93), (55.54, 93.93),(52.45, 78.93),  (65.54, 67.93),  (47.74, 99.93) ]})
# get location coordinates
geo_loc  = df.geo_loc.values
for cord in geo_loc:
    # send request
    location = reverse(cord, addressdetails=True)
    # get state value
    state = location.raw["address"].get("state")
    # store state value
    state_list.append(state)
# assign back states
df['states'] = state_list
print(df)

结果数据帧：

        geo_loc                           states
0   (19.4, 17.93)                   Tibesti تيبستي
1  (55.54, 93.93)                Красноярский край
2  (52.45, 78.93)                   Алтайский край
3  (65.54, 67.93)  Ямало-Ненецкий автономный округ
4  (47.74, 99.93)                         Архангай

Python 获取 Geopy 中每个经纬度坐标的州区和州列

Python get state district and state column for each lat long coordinate in Geopy

python

data-analysis

geopy

pandas

nominatim