Print a summary of a pandas dataframe and its columns

df_summary.py

# =======================================================================
# Print a summary of a pandas dataframe and its columns
# =======================================================================
def df_summary(df):
    print(f'Dataframe has {df.shape[0]:,} rows and {df.shape[1]:,} columns')
    if len(df) > 1:
        summary = pd.DataFrame(df.dtypes, columns=['dtype']).reset_index()
        summary.rename(columns={'index': 'feature'}, inplace=True)
        summary['missing'] = df.isnull().sum().values
        summary['uniques'] = df.nunique().values
        summary['first_value'] = df.iloc[0].values
        summary['second_value'] = df.iloc[1].values
        summary['final_value'] = df.iloc[len(df)-1].values
    else:
        summary = "Not enough data to analyse"
    return summary