Bokeh Web服务器上的可视化,500:内部服务器错误

问题描述 投票:-1回答:1

互联网的大家好,

因此,我尝试进行简单的交互式可视化,在其中可以使用滑动条使用python和bokeh更改绘图上某些点的半径。但是,当我尝试进行更新功能时,似乎收到一条错误消息,内容为:500内部服务器错误如果有人知道我应该对代码进行哪些更改,那么我想知道。

# imports
from bokeh.io import push_notebook, show, output_notebook
from bokeh.server.server import Server
from bokeh.application import Application
from bokeh.application.handlers.function import FunctionHandler
from bokeh.layouts import column
from bokeh.models import Slider
from bokeh.plotting import figure



output_notebook()

# Webpage function, this function will be called upon creating the webpage
def make_page(doc):
    #source = ColumnDataSource(data=dict(radius=20))

    size=20

    def update(attr, old, new):
        s = new
        radius = s
        size.data = dict(radius)

    plot = figure(plot_width=400, plot_height=400)
    plot.circle([1,2], [4,8], size = size, color='blue', alpha=0.5);

    slider = Slider(start=0, end=30, value=20, step=1, title="Number")

    slider.on_change(update)
    # adding the slider and plot to the document shown on the webpage 
    # all elements of the webpage have to be added below
    doc.add_root(column(slider, plot))

# creating the application and running the server local, (http://localhost:5000), port 5000 can be changed
apps = {'/': Application(FunctionHandler(make_page))}
server = Server(apps, port=5000)
server.start()

提前感谢!

python bokeh
1个回答
0
投票

如果从控制台运行Jupyter笔记本,则应该看到完整的堆栈跟踪,并带有确切的错误。

[没有Minimal, Reproducible Example很难说出任何东西,但似乎您正在尝试从dict创建一个radius,但在Python中无法使用。

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