import numpy as np import pandas as pd nazwisko = [] ile = [] df = pd.read_csv('zamowienia.csv') print(df) print(df['Datazamowienia']) df['year'] = pd.DatetimeIndex(df['Datazamowienia']).year print(df) lata = [2003,2004,2005] for i in lata: ramka = df[((df.year == i) & (df.Utarg < 1000))] print("Rok: "+str(i)) print(ramka)