def insert(self, index, value):
    if (index < 0 || index > self.curSize):
        raise IndexError
    self.array = [x if i < index
                  else value if i == index
                  else self.array[i -1]
                  for i, x in enumerate(self.array)]
    if self.curSize == self.totSize:
        self.totSize *= 2
        self.array = [self.array[i] if i < self.curSize
                      else None
                      for i in xrange(self.totSize)]