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# pandas.Index.append

Index.append(other)

  Append a collection of Index options together.

  This method concatenates one or more Index objects to the current index, returning a new Index containing all elements in order.

  Parameters:
    other Index or list/tuple of indices

      Single Index or a collection of indices, which can be either a list or a tuple.

  Returns:
    Index

      Returns a new Index object resulting from appending the provided other indices to the original Index.

  See also

  `Index.insert`

    Make new Index inserting new item at location.

  Examples

      >>> idx = pd.Index([1, 2, 3])
      >>> idx.append(pd.Index([4]))
      Index([1, 2, 3, 4], dtype='int64')