Plotly - 名称“iplot”未定义

Question

一直在Python中使用plotly，但不断遇到上述相同的错误消息。我在 Anaconda 上安装了plotly，在 Jupyter 和 Spyder 上分别收到错误消息：

#data manipulation
import pandas as pd
import numpy as np

#loading csv
df = df = pd.read_csv(r'C:\Users\hendev\Desktop\FIFA18 - Ultimate Team players.csv')

import plotly.graph_objs as go

# prepare data
x2017 = df.overall[df.added_date == 2017]
x2018 = df.overall[df.added_date == 2018]

trace1 = go.Histogram(
    x=x2017,
    opacity=0.75,
    name = "2017",
    marker=dict(color='rgba(171, 50, 96, 0.6)'))
trace2 = go.Histogram(
    x=x2018,
    opacity=0.75,
    name = "2018",
    marker=dict(color='rgba(12, 50, 196, 0.6)'))

data = [trace1, trace2]
layout = go.Layout(barmode='overlay',
                   title=' Rating added in 2017 and 2018',
                   xaxis=dict(title='students-staff ratio'),
                   yaxis=dict( title='Count'),
)
fig = go.Figure(data=data, layout=layout)
iplot(fig)

知道我做错了什么吗？

Answer 1

注意： $ from plotly.plotly import iplot仅在plotly之前有效v3.10.0该plotly.plotly模块已在plotly中被弃用v4.0。首先检查您的版本：

$ python3 -c 'import plotly; print(plotly.__version__)' # for Python 3
$ python -c 'import plotly; print(plotly.__version__)' # for Python 2

v4.0从那时起，该功能已分为两种模式：在线和离线。

在线的

如果您希望在线呈现数字，您现在需要导入图表工作室并使用

from chart_studio.plotly import plot, iplot

离线

如果您想在本地渲染图像，您有多种选择：

from plotly.offline import iplot
# your code
iplot(fig)

或者

from plotly.subplots import make_subplots
fig = make_subplots(# your args)
# your code
fig.show()

或者

import plotly.io as pio
# your code
pio.show(fig)

或者

import plotly.graph_objects as go
fig = go.Figure(# your args)
# your code
fig.show()

您可以在此处阅读有关渲染器的更多信息。

Answer 2

你忘了导入它

from plotly.plotly import iplot