Write python code to

Construct a co$-$authorship network from the bibliographical dataset where each author is represented by a

single node in the network, and an edge exists between two nodes $/$ authors if they have co$-$authored at

least one paper together. The resulting network should be weighted $($by the number of co$-$authored

publications$)$ and undirected. Note that the column of the authors may contain multiple names of the authors, it is required to separate them to create these nodes.