join 2 describes df code example

Example 1: joins in pandas

pd.merge(product,customer,on='Product_ID')

Example 2: concact geodataframe python

>>> s1 = pd.Series(['a', 'b'])
>>> s2 = pd.Series(['c', 'd'])
>>> pd.concat([s1, s2])
0    a
1    b
0    c
1    d
dtype: object