pyhton merge dataframe on code example

Example 1: merge dataframe pandas

>>> df1.merge(df2, left_on='lkey', right_on='rkey')
  lkey  value_x rkey  value_y
0  foo        1  foo        5
1  foo        1  foo        8
2  foo        5  foo        5
3  foo        5  foo        8
4  bar        2  bar        6
5  baz        3  baz        7

Example 2: merge dataframe

In [46]: result = pd.merge(left, right, how="right", on=["key1", "key2"])