10 examples of 'python set intersection' in Python

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191def intersection(self, other):
192 other = set(other)
193 return self._from_iterable(item for item in self if item in other)

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506def intersection_update(self, other):
507 """Update self to include only the intersection with other."""
508 other = set(other)
509 indices_to_delete = set()
510 for i, elem in enumerate(self):
511 if elem not in other:
512 indices_to_delete.add(i)
513 if indices_to_delete:
514 self._delete_values_by_index(indices_to_delete)
191def intersection(self, *others): # &
192 '''Like C{frozen/set.intersection}.
194 @return: New instance (L{FrozenSet} or L{Set}).
195 '''
196 return self.__class__(self._set.intersection(*others))
284def intersection_update(self, *others): # &=
285 '''Like C{set.intersection_update}.
286 '''
287 self._set.intersection_update(*others)
74def intersect(self, other):
75 if self.set_container.intersection(other.set_container):
76 return True
77 else:
78 return False
174def intersection_update(self, *others):
175 for other in others:
176 self &= other
22def issubset(self, items):
23 JS("""
24 for (var i in self.d) {
25 if (!items.__contains__(i)) return false;
26 }
27 return true;
28 """)
46def intersection(self, other):
47 return IdentitySet(self._elems.intersection(other))
226def intersection_update(self, iterable):
227 for item in set(self):
228 if item not in iterable:
229 self.remove(item)
395def intersection_update(self, other):
396 """Update a set with the intersection of itself and another."""
397 self &= other

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