title: plot multiple pandas dataframes in one graph python plotly
body: <p>I want to plot line charts for <strong>multiple pandas data frames in one graph</strong> using <strong>python plotly</strong> (set x-axis: <strong>Day-shift</strong> and y-axis: <strong>PRO</strong>).</p>
  <p>I tried using for loop but it failed to generate expected output.Code I tried is given below.</p>
  <pre><code>import plotly.express as px
  for frame in [df1, df2, df3, df4, df5]:
      fig = px.line(frame, x='Day-Shift', y='PRO',template=&quot;plotly_dark&quot;)
  
  
  fig.show()
  </code></pre>
  <p>Also I want to set legend as df1 to df5</p>