title: Constant AttributeError on plotly.express
body: <p>I have been trying to do some visualizations using Jupyter and everytime I use plotly.express always get an AttributeError. I have checked carefully the identation, version and syntax, but I can't see any error. Please, some help:</p>
  
  <p>(I am using matplotlib-2.0.0; pip-20.1.1; plotly-4.8.1)</p>
  
  <pre><code>    import plotly.express as px
      import plotly.graph_objs as go
      import plotly.figure_factory as ff #aesthetic
      from plotly.subplots import make_subplots #multiplesubplots
      import folium
      import pandas as pd
      import numpy as np
      import matplotlib.pyplot as plt
      %matplotlib inline
      import warnings 
      warnings.filterwarnings ('ignore')
      import plotly as py
      py.offline.init_notebook_mode(connected=True)
  
      import os
  
      try: 
          os.system('rm -rf, Covid-19-Preprocessed-Dataset')  #rm:remove, fr:recursevely all the files
  
      except:
          print('File does not exist')
  
      df = pd.read_csv('Covid-19-Preprocessed-Dataset/preprocessed/covid_19_data_cleaned.csv', parse_dates=['Date'])
      country_daywise = pd.read_csv('Covid-19-Preprocessed-Dataset/preprocessed/country_daywise.csv', parse_dates=['Date'])
      countrywise = pd.read_csv('Covid-19-Preprocessed-Dataset/preprocessed/countrywise.csv')
      daywise = pd.read_csv('Covid-19-Preprocessed-Dataset/preprocessed/daywise.csv', parse_dates=['Date'])
      !git clone https://github.com/laxmimerit/Covid-19-Preprocessed-Dataset.git
  
      #color palette
      cnf = '#393e46'
      dth='#ff2e63'
      rec= '#21bf73'
      act='#fe9'
  
      fig_a=  px.line(daywise, x='Date', y='Deaths / 100 Cases', color_discrete_sequence=['#DC143C'])
      fig_b=  px.line(daywise, x='Date', y='Recovered / 100 Cases', `enter code here`color_discrete_sequence=['#DC143C'])
      fig_c=  px.line(daywise, x='Date', y='Deaths / 100 Recovered', color_discrete_sequence=['#DC143C'])
  
      fig = make_subplots(rows=1, cols=3, shared_xaxes=False,
                         subplot_titles=('Deaths / 100 Cases', 'Recovered / 100 Cases', 'Deaths / 100 Recovered'))
  
      fig.add_trace(fig_a['data'][0], row=1, col=1)
      fig.add_trace(fig_b['data'][0], row=1, col=2)
      fig.add_trace(fig_c['data'][0], row=1, col=3)
  
      fig.update_layout(height = 400)
      fig.show()
  
  ____________________________________________________________________________________________________
  
  ---------------------------------------------------------------------------
  
      AttributeError                            Traceback (most recent call last)
      &lt;ipython-input-188-aba5b3b9b455&gt; in &lt;module&gt;
      ----&gt; 1 fig_a=  px.line(daywise, x='Date', y='Deaths / 100 Cases', color_discrete_sequence=['#DC143C'])
            2 fig_b=  px.line(daywise, x='Date', y='Recovered / 100 Cases', color_discrete_sequence=['#DC143C'])
            3 fig_c=  px.line(daywise, x='Date', y='Deaths / 100 Recovered', color_discrete_sequence=['#DC143C'])
            4 
            5 fig = make_subplots(rows=1, cols=3, shared_xaxes=False,
  
      AttributeError: 'Figure' object has no attribute 'line'
  </code></pre>