我一直试图在谷歌colab上显示直方图，但它没有显示

Question

我一直试图在谷歌colab上显示直方图，但它没有显示。以下是而非显示的代码：

//imports
from chart_studio import plotly
from plotly.offline import init_notebook_mode, iplot
init_notebook_mode(connected=True)
import plotly.graph_objs as go
// code starts from here
trace = go.Histogram( 
x = data.defects,
opacity = 0.75,
name = "Defects",
marker = dict(color = 'green'))
hist_data = [trace]
hist_layout = go.Layout(barmode='overlay',
title = 'Defects',
xaxis = dict(title = 'True - False'),
yaxis = dict(title = 'Frequency'),
)
fig = go.Figure(data = hist_data, layout = hist_layout)
iplot(fig) //This is not displaying anything

Answer 1

尝试在代码之前添加以下内容：

%matplotlib inline
import matplotlib.pylab as plt