/Python/Python dict remove duplicates where items are not the same

Python dict remove duplicates where items are not the same

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)

Source: stackoverflow.com

Python remove duplicates from list of dict

# set the dict to a tuple for hashability, then use {} for set literal and retrn each item to dict. 
[dict(t) for t in {tuple(d.items()) for d in l}]
# using two maps()
list(map(lambda t: dict(t), set(list(map(lambda d: tuple(d.items()), l)))))

-1

Source: stackoverflow.com

Similar codes

3 votes131 views1 answer
Io.UnsupportedOperation: not readable
Python
0 vote123 views2 answers
Python script in excel
Python
0 vote157 views1 answer
Pandas to latex table width pylatex
Python
2 votes130 views1 answer
Python read excel set index
Python
0 vote141 views1 answer
What does features = data.drop(["Survived", "Sex", "Embarked"], axis=1) do in python
Python
14 votes157 views2 answers
Python tim script
Python
0 vote120 views1 answer
Use iloc to loop through dataframe
Python
-2 votes119 views1 answer
Reverse python3
Python
0 vote138 views1 answer
Change color of text button pyqt5
Python
12 votes131 views5 answers
Python create uuid
Python