Python Dict Usuń duplikaty, gdzie nazwa nie jest taka sama
import itertools
mylist = [{'x':2020 , 'y':20},{'x':2020 , 'y':30},{'x':2021 , 'y':10},{'x':2021 , 'y':5}]
mylist1=[]
for key, group in itertools.groupby(mylist,lambda x:x["x"]):
max_y=0
for thing in group:
max_y=max(max_y,thing["y"])
mylist1.append({"x":key,"y":max_y})
print(mylist1)
Good Grouse