在我的import pandas as pd
from bokeh.palettes import RdBu
from bokeh.models import LinearColorMapper, ColumnDataSource, ColorBar
from bokeh.models.ranges import FactorRange
from bokeh.plotting import figure, show
from bokeh.io import output_notebook
import numpy as np
output_notebook()
d = dict(x = ['A','A','A', 'B','B','B','C','C','C','D','D','D'],
y = ['B','C','D', 'A','C','D','B','D','A','A','B','C'],
corr = np.random.uniform(low=-1, high=1, size=(12,)).tolist())
df = pd.DataFrame(d)
df['size'] = np.where(df['corr']<0, np.abs(df['corr']), df['corr'])*50
#added a new column to make the plot size
colors = list(reversed(RdBu[9]))
exp_cmap = LinearColorMapper(palette=colors,
low = -1,
high = 1)
p = figure(x_range = FactorRange(), y_range = FactorRange(), plot_width=700,
plot_height=450, title="Correlation",
toolbar_location=None, tools="hover")
p.scatter("x","y",source=df, fill_alpha=1, line_width=0, size="size",
fill_color={"field":"corr", "transform":exp_cmap})
p.x_range.factors = sorted(df['x'].unique().tolist())
p.y_range.factors = sorted(df['y'].unique().tolist(), reverse = True)
p.xaxis.axis_label = 'Values'
p.yaxis.axis_label = 'Values'
bar = ColorBar(color_mapper=exp_cmap, location=(0,0))
p.add_layout(bar, "right")
show(p)
中，我触发了一个将用户重定向到其他页面的函数，但出现错误render。
我注意到，如果我将Cannot update during an existing state transition (such as within render)中的redirectToPath函数放在render中，它将允许状态完成转换并且错误消失了。如果将setTimeout和history.push(path)（在setState内）放在redirectToPath中，它也可以工作。我该如何重构它，以免与状态转换发生冲突？
setTimeout答案 0 :(得分：1)
那是处理您的负载的怪异方法。也许您可以向我们解释您背后的逻辑？
同时，您可以尝试一下
代替：
<div>Done Loading</div>
使用：
<Redirect to="/somewhere/else" />
有关工作示例，请参阅文档：https://reacttraining.com/react-router/web/api/Redirect