title: Pandas split one dataframe into multiple dataframes
body: <p>I have one pandas dataframe that I need to split into multiple dataframes. The number of dataframes I need to split depends on how many months of data I have i.e I need to create a new dataframe for every month.
  So df:</p>
  
  <pre><code>MONTH   NAME INCOME
  201801   A     100$
  201801   B      20$
  201802   A      30$
  </code></pre>
  
  <p>So I need to create 2 dataframes . Problem is i dont know how many months of data I will have in advance.
  How do i do that</p>