Python pandas : Merge two tables without keys (Multiply 2 dataframes with broadcasting all elements; NxN dataframe) : <p>I want to merge 2 dataframes with broadcast relationship:
No common index, just want to find all pairs of the rows in the 2 dataframes.
So want to make N row dataframe x M row dataframe = N*M row dataframe.
Is there any rule to make this happen without using itertool?</p>

<pre><code>DF1=
  id  quantity  
0  1        20  
1  2        23  

DF2=
      name  part  
    0  'A'   3  
    1  'B'   4  
    2  'C'   5  

DF_merged=
      id  quantity name part 
    0  1        20  'A'  3 
    1  1        20  'B'  4 
    2  1        20  'C'  5 
    3  2        23  'A'  3
    4  2        23  'B'  4
    5  2        23  'C'  5
</code></pre>
