Python 3.x 条形图工具提示上缺少值

我对bokeh条形图有问题。 这是我的密码：

from bkcharts import Bar
from bokeh.models import FactorRange

# Make Bokeh Push push output to Jupyter Notebook.
from bokeh.io import push_notebook, show, output_notebook
from bokeh.resources import INLINE
output_notebook(resources=INLINE)

from bokeh.models import HoverTool

data = {
    'name' : [chan['name'] for chan in full_channels_info],
    'members' : [chan['num_members'] for chan in full_channels_info]
}

hover = HoverTool(tooltips=[
    ("Channel", "@name"),
    ("Users", "@members"),
])

chart = Bar(data, values='members', label='name',
      title="Channels population", plot_width=1000, xlabel="Channel", ylabel="Members",
            legend=None, tools=[hover])

show(chart)

问题在于，当我将鼠标悬停在其中一个栏上时，工具提示如下所示：

---

问题在于，在

HoverTool（）

中，您应该参考

@height

，而不是

@members

hover = HoverTool(tooltips=[
    ("Channel", "@name"),
    ("Users", "@height"),
])