CODEWITHSUNDEEP
pythonset
Xenia Boreyko
Xenia Boreyko

Reputation: 1

Can anyone please explain to me the difference of the two variants of making a set from a list?

I'm new in python and I got confused. Can anyone please explain to me the difference of the two variants of making a set from a list? Which one is more correct?

a = ["Jake", "John", "Eric"]
b = ["John", "Jill"]
c = set([])
d = set([])
for i in range (len(a)):
    c.add(a[i])

for y in range (len(b)):
    d.add(b[y])
print c.difference(d)    
import sets
e= sets.Set(a)
print e
f = sets.Set(b)
print f
print e.difference(f)

Outcome
set(['Jake', 'Eric'])
Set(['Jake', 'Eric'])

Thanx!

Upvotes: 0

Views: 72

Answers (1)

HYRY
HYRY

Reputation: 97301

It doesn't take a for loop to convert a list to set:

a = ["Jake", "John", "Eric"]
b = ["John", "Jill"]
print set(a) - set(b)

use set object instead of sets.Set(), sets.Set() is deprecated.

Upvotes: 1

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