Python Folium 错误：“并非所有参数都在字符串格式化期间转换”

Question

我正在尝试创建一个显示火山位置的网络地图。我在 Python 中使用 Folium 库，并使用 HTML 对其进行设计。我也在使用来自 Pandas DataFrame 的数据。但是，当我运行我的代码时，出现以下错误：Traceback (most recent call last):  File "webmap.py", line 20, in <module>    iframe = folium.IFrame(html=html % (name, name, str(elev)), width=200, height=100)TypeError: not all arguments converted during string formatting这是我的代码：import foliumimport pandasdata = pandas.read_csv("Volcanoes.txt")latitudes = list(data["LAT"])longitudes = list(data["LON"])elevations = list(data["ELEV"])names = list(data["NAME"])html = """Volcano name:<br><a href="https://www.google.com/search?q=%%22%%s%%22" target="_blank">%s</a><br>Height: %s m"""map = folium.Map(location=[38.58, -99.09], zoom_start=6, tiles="Stamen Terrain")fg = folium.FeatureGroup(name="My Map")for lat, lon, elev, name in zip(latitudes, longitudes, elevations, names):    iframe = folium.IFrame(html=html %(name, name, str(elev)), width=200, height=100)    fg.add_child(folium.Marker(location=[lat, lon], popup=folium.Popup(iframe), icon=folium.Icon(color="green")))map.add_child(fg)map.save("Map1Advacned.html")Pandas DataFrame 包含有关每座火山的信息，包括其位置（纬度和经度）、海拔和名称，我在代码的第一部分将其解析为 Python 数组。有谁知道为什么会出现这个错误？任何帮助将非常感激。提前致谢！

Answer 1

我的补充数据是新加坡政府气象站温度数据。我已经对其进行了操作以适合您的示例

1. 更改location和zoom参数，因为新加坡在不同的地方并且小得多;-)

2. 您的核心问题是将字符串替换为html变量。我更喜欢 f-strings，所以将其更改为这个并且它有效。

import folium

import pandas as pd

df = pd.DataFrame({'latitude': [1.3764, 1.256, 1.3337, 1.3135, 1.3399, 1.2799],

 'longitude': [103.8492, 103.679, 103.7768, 103.9625, 103.8878, 103.8703],

 'value': [32.3, 31.7, 32.2, 29.9, 32.1, 32.5],

 'tooltip': ['32.3 Ang Mo Kio Avenue 5 August 09, 2020 at 01:00PM',

  '31.7 Banyan Road August 09, 2020 at 01:00PM',

  '32.2 Clementi Road August 09, 2020 at 01:00PM',

  '29.9 East Coast Parkway August 09, 2020 at 01:00PM',

  '32.1 Kim Chuan Road August 09, 2020 at 01:00PM',

  '32.5 Marina Gardens Drive August 09, 2020 at 01:00PM']})

data = df.copy().rename({'latitude':"LAT",'longitude':"LON",'value':"ELEV",'tooltip':"NAME"}, axis=1)

latitudes = list(data["LAT"])

longitudes = list(data["LON"])

elevations = list(data["ELEV"])

names = list(data["NAME"])

def myhtml(name, elev):

    return f"""

    Volcano name:<br>

    <a href="https://www.google.com/search?q=%%22%{name}%%22" target="_blank">{name}</a><br>

    Height: {elev} m

    """

map = folium.Map(location=[1.34, 103.82], zoom_start=12, tiles="Stamen Terrain")

fg = folium.FeatureGroup(name="My Map")

for lat, lon, elev, name in zip(latitudes, longitudes, elevations, names):

    iframe = folium.IFrame(html=myhtml(name, elev), width=200, height=100)

    fg.add_child(folium.Marker(location=[lat, lon], popup=folium.Popup(iframe), icon=folium.Icon(color="green")))

map.add_child(fg)

map.save("Map1Advacned.html")