<｜begin▁of▁sentence｜>### Instruction:
As an engineer, you're working on a project to analyze a complex network using the networkx library. You need to know how to initialize and start an IPython shell within the networkx session to interactively explore and analyze the graph data. How can you do this seamlessly within the networkx environment?
### Response:
from igraph.app.shell import IPythonShell

# Initialize the IPython shell for igraph
shell = IPythonShell()

# Start the IPython shell
shell.mainloop()
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