PyDeck初始化报错：__init__()收到意外关键字参数'mapbox_key'

核心原因 #

你使用的PyDeck 0.8.0版本中，pdk.Deck类的初始化参数里并没有mapbox_key，对应的正确参数名称是api_key。这个参数名在后续PyDeck版本中才改为mapbox_key，但你的旧版本不支持这个新参数名。

解决方案 #

直接将代码中pdk.Deck初始化时的mapbox_key=MAPBOX_API_KEY替换为api_key=MAPBOX_API_KEY即可。

修改后的完整代码 #

import pydeck as pdk
import pandas as pd
from vega_datasets import data as vds
import ipywidgets
from palettable.cartocolors.sequential import BrwnYl_3
import json

# Public API key
MAPBOX_API_KEY = "pk.eyJ1IjoiZXphYW45MDIiLCJhIjoiY2xhdHI4NzI3MDQwazNwcDg1bDdyN3ZzMCJ9.8BOAE-IFmp6PeellMppXsA"

# data
data = 'https://raw.githubusercontent.com/groundhogday321/dataframe-datasets/master/fake_commute_data.csv'
commute_pattern = pd.read_csv(data)
print(commute_pattern.head(2))

# view (location, zoom level, etc.)
view = pdk.ViewState(latitude=32.800382, longitude=-97.040728, pitch=50, zoom=9)

# layer
# from home (orange) to work (purple)
arc_layer = pdk.Layer('ArcLayer',
                      data=commute_pattern,
                      get_source_position=['from_lon', 'from_lat'],
                      get_target_position=['to_lon', 'to_lat'],
                      get_width=5,
                      get_tilt=15,
                      # RGBA colors (red, green, blue, alpha)
                      get_source_color=[255, 165, 0, 80],
                      get_target_color=[128, 0, 128, 80])

# render map
# 修改了参数名：mapbox_key -> api_key
arc_layer_map = pdk.Deck(map_style='mapbox://styles/mapbox/light-v10',
                         layers=arc_layer,
                         initial_view_state=view,
                         api_key=MAPBOX_API_KEY)

# display and save map (to_html(), show())
arc_layer_map.to_html(r'C:\Users\Admin loc\OneDrive\Bureau\arc_layer_map.html')
arc_layer_map.show()

额外验证方案 #

如果你不想在代码中硬编码API密钥，可以设置系统环境变量MAPBOX_API_KEY，PyDeck 0.8.0会自动读取该环境变量的值，此时初始化pdk.Deck时可以省略api_key参数。

内容的提问来源于stack exchange，提问作者Ezaan