python remove duplicates from list of dict

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Clayton
22 Jan 2016
1student_data = {'id1': 
2   {'name': ['Sara'], 
3    'class': ['V'], 
4    'subject_integration': ['english, math, science']
5   },
6 'id2': 
7  {'name': ['David'], 
8    'class': ['V'], 
9    'subject_integration': ['english, math, science']
10   },
11 'id3': 
12    {'name': ['Sara'], 
13    'class': ['V'], 
14    'subject_integration': ['english, math, science']
15   },
16 'id4': 
17   {'name': ['Surya'], 
18    'class': ['V'], 
19    'subject_integration': ['english, math, science']
20   },
21}
22
23result = {}
24
25for key,value in student_data.items():
26    if value not in result.values():
27        result[key] = value
28
29print(result)
30
31
source
Asma
28 Nov 2017
1
2# ----- Create a list with no repeating elements ------ #
3
4mylist = [67, 7, 89, 7, 2, 7]
5newlist = []
6
7  for i in mylist: 
8    if i not in newlist: 
9        newlist.append(i)
10
source
Melia
24 Jan 2019
1# set the dict to a tuple for hashability, then use {} for set literal and retrn each item to dict. 
2[dict(t) for t in {tuple(d.items()) for d in l}]
3# using two maps()
4list(map(lambda t: dict(t), set(list(map(lambda d: tuple(d.items()), l)))))
source
Jack
23 Jun 2018
1import itertools
2mylist = [{'x':2020 , 'y':20},{'x':2020 , 'y':30},{'x':2021 , 'y':10},{'x':2021 , 'y':5}]
3mylist1=[]
4for key, group in itertools.groupby(mylist,lambda x:x["x"]):
5    max_y=0
6    for thing in group:
7        max_y=max(max_y,thing["y"])
8    mylist1.append({"x":key,"y":max_y})
9print(mylist1)
10
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