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

Python dict remove duplicates where name 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 votes364 views3 answers
Calculate mean median mode in python
Python
1 vote342 views1 answer
Show chrome devtools in selenium
Python
0 vote333 views1 answer
Save lines from a file
Python
1 vote405 views1 answer
Python match phone number
Python
0 vote360 views1 answer
3d plot
Python
1 vote346 views1 answer
Remove all pyc
Python
109 votes349 views6 answers
Python check if string contains substring
Python
1 vote377 views1 answer
How to set class attributes with kwargs python
Python
30 votes361 views2 answers
Matplotlib change text size
Python
1 vote318 views1 answer
Visualizing of convolutional kernels using pytorch
Python