/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

0 vote311 views1 answer
Return array of odd rows and even columns from array using numpy
Python
0 vote325 views1 answer
Fix misspelled in Wikipedia library on python
Python
9 votes336 views2 answers
Python extract values that have different values in a column
Python
2 votes314 views3 answers
Find the Runner-Up Score!
Python
0 vote362 views1 answer
Python remove articles from string regex
Python
0 vote364 views1 answer
How to run django server outside world
Python Django
0 vote331 views1 answer
Login system user exist in textfile python
Python
0 vote311 views1 answer
Right-left staircase python
Python
0 vote354 views1 answer
Pandas describe kurtosis skewness
Python
25 votes315 views3 answers
Python find number of occurrences in list
Python