AddSelfEdges
'''''''''''

.. function:: AddSelfEdges(Graph)

Adds a self-edge to every node in the graph.

Parameters:

- *Graph*: graph (input)
    A Snap.py graph or a network

Return value:

- None

The following example shows how to use :function:`AddSelfEdges` with
:class:`PNGraph`, :class:`PUNGraph`, and :class:`PNEANet`::

    import snap

    Graph = snap.GenRndGnm(snap.PNGraph, 100, 1000)
    snap.AddSelfEdges(Graph)

    Graph = snap.GenRndGnm(snap.PUNGraph, 100, 1000)
    snap.AddSelfEdges(Graph)

    Graph = snap.GenRndGnm(snap.PNEANet, 100, 1000)
    snap.AddSelfEdges(Graph)