title: Python: Removing specific char while writing in .csv file
body: <p>I need to write a dictionary with lists as values into a CSV.
  Input looks like:</p>
  
  <pre><code>d = {'a': [1.11, 2.22, 3.33],
       'b': [4.44, 5.55, 6.66],
       'c': [7.77, 8.88, 9.99]}
  </code></pre>
  
  <p>The output should look like:</p>
  
  <pre><code>a    1.11    2.22    3.33
  b    4.44    5.55    6.66
  c    7.77    8.88    9.99
  </code></pre>
  
  <p>My code is </p>
  
  <pre><code>with open('Test.csv', 'w') as f:
      for key in d.keys():
          f.write("%s,%s\n"%(key,d[key]))
  </code></pre>
  
  <p>Which outputs:</p>
  
  <pre><code>a    [1.11    2.22    3.33]
  b    [4.44    5.55    6.66]
  c    [7.77    8.88    9.99]
  </code></pre>
  
  <p>How can I amend my code to remove the brackets upon storing into the csv file? I know I can go through the file later and remove the brackets but I would like to do it before or while I'm writing to it.</p>