doc/SetClass.py


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class Set():
 def new(self):
 self.elements = []
 return self
 def add(self, e):
 if e not in self.elements:
 self.elements.append(e)
 def remove(self, e):
 if e in self.elements:
 for i in range(len(self.elements)):
 if self.elements[i] = e:
 del self.elements[i]
 break
 def is_element(self, e):
 return e in self.elements
 def size(self):
 return len(self.elements)