how to change the column type to string in pandas dataframe code example

Example 1: pandas change column to a string

total_rows['ColumnID'] = total_rows['ColumnID'].astype(str)

Example 2: pandas change dtype to string

df['id'].astype(str)
0    1
1    5
2    z
3    1
4    1
5    7
6    2
7    6