title: How to define circle size using matplotlib_venn in python
body: <p>I'm using python package matplotlib_venn to plot venn diagram.
  I want to set the size of the circles such that in different plots the circle size will be the same. How could I do it? </p>
  
  <pre><code>from charticle.venn import Venn2
  import matplotlib_venn as vplt
  import matplotlib.pyplot as plt
  fig = plt.figure()
  plt.subplot(121)
  v2 = vplt.venn2(subsets={'10':10,'01':10,'11':1},set_labels = ('A','B'))
  v.Sizes(a=1.0, b=10.0, ab=1.0)
  plt.subplot(122)
  v1 = vplt.venn2(subsets={'10':10,'01':1000,'11':1},set_labels = ('A','B'))
  plt.show()
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/tAsd1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tAsd1m.png" alt="enter image description here"></a></p>