substitute value in dataframe code example

Example 1: replace column values pandas

df['column'] = df['column'].str.replace(',','-')
df

Example 2: replacing values in pandas dataframe

df['coloum'] = df['coloum'].replace(['value_1','valu_2'],'new_value')

Example 3: replace values of pandas column

df.loc[df['column'] == 'column_value', 'column'] = 'new_column_value'