title: Animated multiseries Line Graph using Plotly Express (Python)
body: <p>I am trying to animate a multi series line graph using plotly. However after days of going through the documentation I still can't seem to find a solution. </p>
  
  <p>Currently my code is as follows: </p>
  
  <pre><code>df = px.data.gapminder().query("continent=='Oceania' ")
  fig = px.line(df, x="year" , y="lifeExp", color="country" , animation_frame="year", animation_group="lifeExp" , range_y=[68,84] , range_x=[1950,2010])
  
  plot(fig)
  </code></pre>
  
  <p>This however generates and empty plot. Please help.</p>
  
  <p>I am able to successfully generate a scatter plot and a bar graph using similar code. </p>
  
  <p>For better understanding please view below link : 
  I have found an exact example of what I am looking for implemented in R. </p>
  
  <p><a href="https://plot.ly/r/cumulative-animations/#cumulative-lines-animation" rel="nofollow noreferrer">https://plot.ly/r/cumulative-animations/#cumulative-lines-animation</a></p>