CODEWITHSUNDEEP
python
Hanofy Alnaemi
Hanofy Alnaemi

Reputation: 13

remove element from dictionary in python

I am trying to remove the element that have minimum value in the dictionary to try to arrange the rest to the ascending order;

dict={}
for line in file:
    line = line.split()
    dict.update({line[0]:line[1]})

while dict.items():
    min = float(100)
    for x in dict:
        print(dict[x])
        g=float(dict[x])
        if (g<min):
            min=float(dict[x])
    print(min)

for name, avg in dict.items():
    if float(avg) == min:
        print(name)

fileout.write(name+ '\t' + str(avg) + '\n')
del dict[name]
print(dict)

Upvotes: 1

Views: 105

Answers (1)

Peilonrayz
Peilonrayz

Reputation: 3954

It would be easier to build a new dictionary from the previous one. By using sorted, dict.items() and passing key as lambda i: i[1] we can build a sorted dictionary. Finally we want to get all bar the first value and so we need to slice the result of sorted

d = {'a': 3, 'b': 1, 'c': 2}
new_d = dict(sorted(d.items(), key=lambda i: i[1])[1:])
print(new_d)
# {'c': 2, 'a': 3}

If you have to mutate the first object then we can just clear and rebuild it with dict.update.

d = {'a': 3, 'b': 1, 'c': 2}
new_d = sorted(d.items(), key=lambda i: i[1])[1:]
d.clear()
d.update(new_d)
print(d)
# {'c': 2, 'a': 3}

Upvotes: 2

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