NOT DEFTERİ, BİLGİ PAYLAŞIMI TIRI VIRI…

from sets import Set
students = Set(['Joe', 'Jane', 'Mary', 'Pete'])
programmers = Set(['Caroline', 'Tom', 'John', 'Pete'])
designers = Set(['Paul', 'Mary', 'Susan', 'Pete'])

print "These are the students:"
for student in students:
   print student,
print "!"

print "There are", len(students), "students."
print

people = students | programmers | designers           # union
print "All people:", people
print

student_designers = students & designers              # intersection
print "Students who also design:", student_designers
print

non_design_students = students - designers            # difference
print "Students who do not design:", non_design_students

Küme İşlemleri

len(s)	cardinality of set s
x in s	test x for membership in s
x not in s	test x for non-membership ins
s.issubset(t)	test whether every element in s is in t
s.issuperset(t)	test whether every element in t is in s
s | t	Union: new set with elements from both s and t
s & t	Intersection: new set with elements common to s and t
s - t	Difference: new set with elements in s but not in t
s ^ t	Symmetric difference: new set with elements in either s or t but not both
s.copy()	new set with a shallow copy of s
s.add(x)	add element x to set s
s.discard(x)	remove element x from set s
s.clear()	remove all elements from set s
s == t	test whether sets s and t are equal
s != t	test whether sets s and t are not equal

Küme Kopyalamak ve Karşılaştırmak

Kümeyi kopyalamak için copy() kullanılmalıdır.

from sets import Set
odd = Set([1,3,5])
even = Set([2,4,6])
copy1 = odd
copy2 = odd.copy()

>>> print "Are copy1 and odd the same?", copy1 is odd
Are copy1 and odd the same? True
>>> print "Are copy1 and odd equal?", copy1 == odd
Are copy1 and odd equal? True
>>> print "Are copy2 and odd the same?", copy2 is odd
Are copy2 and odd the same? False
>>> print "Are copy2 and odd equal?",copy2 == odd
Are copy2 and odd equal? True


odd.add(7)
>>> print odd
Set([1, 3, 5, 7])
>>> print "copy1:", copy1
copy1: Set([1, 3, 5, 7])
>>> print "copy2:", copy2
copy2: Set([1, 3, 5])