Programming and Application Security
Python for Networking
Using Python to work with devices, data and network tasks.
- 9 notes
- 73 minutes of reading
- Python basics for network engineers: install, run, variables, loops and ifA practical first step into Python for network and security engineers: installing Python 3, running scripts, and using variables, data types, if statements and loops with network examples. 8 min · Beginner
- Python data structures: lists, dictionaries, sets and tuples for networksHow Python lists, dictionaries, sets and tuples work, when to use each one, and how to model devices, interfaces and VLANs with them. 8 min · Beginner
- Reading and writing files in Python: text, CSV, JSON and YAMLHow to read and write plain text, CSV, JSON and YAML files safely in Python, with network inventory and report examples. 8 min · Beginner
- Python functions, modules, packages and virtual environmentsHow to write reusable functions, split code into modules and packages, install libraries with pip, and isolate each project in a virtual environment. 8 min · Beginner
- The Python ipaddress module: subnets, hosts and validationUsing Python’s built-in ipaddress module to validate IPv4 and IPv6 addresses, split networks into subnets, list hosts and check membership. 7 min · Beginner
- Parsing device output and logs with Python regular expressionsHow to use Python’s re module to pull interface names, addresses, counters and log fields out of device output and syslog, plus when to use a ready-made parser instead. 9 min · Intermediate
- Network programming with Python sockets: TCP client and server basicsHow Python sockets work, the difference between TCP and UDP sockets, a minimal echo server and client, and a safe port check for your own network. 8 min · Intermediate
- Error handling and logging in Python automation scriptsHow to handle exceptions with try and except, keep going when one device fails, and replace print statements with proper logging that is safe for credentials. 8 min · Intermediate
- Python for network engineers: libraries and a first automation scriptWhy Python is the language of network automation, the key libraries (Netmiko, NAPALM, ncclient, requests, Nornir, TextFSM), a complete configuration backup script with a YAML inventory, safe changes and a learning path. 9 min · Intermediate