df replace column values code example
Example 1: change specific column name pandas
df_new = df.rename(columns={'A': 'a'}) #change a from A
Example 2: replace column values pandas
df['column'] = df['column'].str.replace(',','-')
df
Example 3: replacing values in pandas dataframe
df['coloum'] = df['coloum'].replace(['value_1','valu_2'],'new_value')