试图制作美国大选结果的时间序列合唱。在尝试在每个状态上添加一个弹出按钮时：
#plot choropleth button map
m = folium.Map(location=[50.77500, -100],zoom_start=3)
choropleth =folium.GeoJson(data= us_shape.to_json(),
style_function=style_function)
m.add_child(choropleth)
#Create popup button for each state
for i in range(len(us_shape)):
geometry = us_shape.loc[i]['geometry']
state_name = us_shape.loc[i]['state_name']
popup = folium.Popup(getFigure(state_name),max_width=1000)
state_marker = folium.GeoJson(data=mapping(geometry),
highlight_function = highlight_style)
state_marker.add_child(popup)
m.add_child(state_marker)
m.save("../figures/us_election_map2.html")
我在以下错误中运行：
AttributeError Traceback (most recent call last)
<ipython-input-271-f8158e5140b6> in <module>
12 state_name = us_shape.loc[i]['state_name']
13 print(state_name)
---> 14 popup = folium.Popup(getFigure(state_name),max_width=1000)
15 state_marker = folium.GeoJson(data=mapping(geometry),
16 highlight_function = highlight_style)
<ipython-input-249-50efd762b466> in getFigure(state)
37
38 #Add figure to iframe
---> 39 html = mpld3.fig_to_html(fig)
40 iframe = folium.IFrame(html=html,width = 600, height = 300)
41
D:anaconda3libsite-packagesmpld3_display.py in fig_to_html(fig, d3_url, mpld3_url, no_extras, template_type, figid, use_http, include_libraries, **kwargs)
248
249 renderer = MPLD3Renderer()
--> 250 Exporter(renderer, close_mpl=False, **kwargs).run(fig)
251
252 fig, figure_json, extra_css, extra_js = renderer.finished_figures[0]
D:anaconda3libsite-packagesmpld3mplexporterexporter.py in run(self, fig)
49 import matplotlib.pyplot as plt
50 plt.close(fig)
---> 51 self.crawl_fig(fig)
52
53 @staticmethod
D:anaconda3libsite-packagesmpld3mplexporterexporter.py in crawl_fig(self, fig)
116 props=utils.get_figure_properties(fig)):
117 for ax in fig.axes:
--> 118 self.crawl_ax(ax)
119
120 def crawl_ax(self, ax):
D:anaconda3libsite-packagesmpld3mplexporterexporter.py in crawl_ax(self, ax)
121 """Crawl the axes and process all elements within"""
122 with self.renderer.draw_axes(ax=ax,
--> 123 props=utils.get_axes_properties(ax)):
124 for line in ax.lines:
125 self.draw_line(ax, line)
D:anaconda3libsite-packagesmpld3mplexporterutils.py in get_axes_properties(ax)
296 lim = domain
297 if (
--> 298 isinstance(axis.converter, matplotlib.dates._SwitchableDateConverter) or
299 isinstance(axis.converter, matplotlib.dates.DateConverter) or
300 isinstance(axis.converter, matplotlib.dates.ConciseDateConverter)
AttributeError: module 'matplotlib.dates' has no attribute '_SwitchableDateConverter'
我正在windows上运行Jupyter笔记本，找不到有关"_SwitchableDateConverter"的任何信息。
为了完成，getFigure函数如下：
def getFigure(state):
"""
Plot voting trends from a given state
"""
#Get number of votes
years = range(1976,2020,4)
dems = []
reps =[]
for year in years:
result = results[year][state]
dems.append(result['dem']/1000000)
reps.append(result['rep']/1000000)
#Plot number of votes
fig = plt.figure(figsize=(8,4))
plt.plot(years,dems,label='Democrat',color='#4f7bff')
plt.plot(years,reps,label='Republican',color='#ff5b4f')
plt.title(state,size = 18)
plt.ticklabel_format(style='plain')
plt.xlabel('Year',size =14)
plt.xticks(years)
plt.ylabel('Votes (millions)',size =14)
plt.legend(loc =0)
#Add figure to iframe
html = mpld3.fig_to_html(fig)
iframe = folium.IFrame(html=html,width = 600, height = 300)
return iframe
感谢您的帮助
在使用mpld3最新版本时也存在同样的问题。我尝试降级到matplotlib 3.2.1和mpld3 0.5.5，它很有效。