Python Folium 错误："not all arguments converted during string formatting"

Question

我正在尝试创建一个显示火山位置的网络地图。我使用Python中的Folium库，并使用HTML进行设计。我也在使用Pandas DataFrame的数据。然而，当我运行代码时，我会得到以下错误：

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 folium
import pandas
data = 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包含关于每个火山的信息，包括它的位置(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。

有人知道为什么会出现这种错误吗？任何帮助都将不胜感激。提前感谢！

Answer 1

我的补充数据是新加坡政府气象站的温度数据。我对它进行了处理，以适应您的示例

1. 更改了location和zoom参数，因为新加坡在一个不同的地方，而且要小得多；-(
2. 您的核心问题是将字符串替换为html变量。我更喜欢f字符串，所以把它改成了这个，它很管用

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")