/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

27 votes163 views2 answers
What value do we get from NULL database python
Python
3 votes161 views1 answer
Month from datetime pandas
Python
3 votes157 views1 answer
Install re package python
Python
0 vote167 views1 answer
Jetson nx unable to install matplotlib
Python
0 vote169 views1 answer
Funny application in python
Python
109 votes169 views6 answers
Conda environment
Python
1 vote154 views2 answers
Unknown amount of arguments discord py
Python
0 vote164 views1 answer
Arabic in python
Python
-1 vote161 views1 answer
Python squared
Python
1 vote174 views1 answer
Use python type hint for multiple return values
Python