change to string pandas code example

Example 1: pandas change column to a string

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

Example 2: str replace pandas

>>> pd.Series(['foo', 'fuz', np.nan]).str.replace('f.', 'ba', regex=True)
0    bao
1    baz
2    NaN
dtype: object