Home » Programming » Python » Modules » Networkx Module
📌 Pin 🔗 Copy Link 📋 Copy Markdown ⬇️ Download
1 min read

Python NetworkX Module

NetworkX is a Python package for the creation, manipulation, and study of the structure, dynamics, and functions of complex networks (graphs).

Installation

pip install networkx

Creating a Graph

import networkx as nx

# Create an empty graph with no nodes and no edges
G = nx.Graph()

Adding Nodes and Edges

# Add a single node
G.add_node(1)

# Add a list of nodes
G.add_nodes_from([2, 3])

# Add an edge between 1 and 2
G.add_edge(1, 2)

# Add a list of edges
G.add_edges_from([(1, 3), (2, 3)])

Analyzing the Graph

print(f"Number of nodes: {G.number_of_nodes()}")
print(f"Number of edges: {G.number_of_edges()}")

# Check degrees (number of connections)
print(f"Degree of node 1: {G.degree[1]}")

# Shortest path
print(nx.shortest_path(G, source=1, target=3))

Directed Graphs

Use DiGraph for directed edges (A -> B is different from B -> A).

DG = nx.DiGraph()
DG.add_edge(1, 2)   # 1 -> 2
DG.add_edge(2, 1)   # 2 -> 1

Drawing Graphs

NetworkX works with Matplotlib to draw graphs.

import matplotlib.pyplot as plt

nx.draw(G, with_labels=True, font_weight='bold')
plt.show()

Algorithms

NetworkX contains many standard graph algorithms.

# PageRank
pr = nx.pagerank(G)

# Connected Components
components = list(nx.connected_components(G))

# Clustering Coefficient
clustering = nx.clustering(G)

programming/python/python

Created: March 17, 2026 • Last Modified: January 28, 2026