The network section kept growing faster than I expected.

After the ping checker and IP viewer, I added a port checker. You provide a host and a port, and it tries to connect with a 3-second timeout. It tells you if the port is open or closed. It’s simple, but I actually use this. It’s much quicker than Googling “how to check if port X is open” every time. I had to wrap it in try/except because if the port is closed, the connection throws an exception and crashes everything. I learned that the hard way.

Building the IP scanner was the most satisfying part. It grabs your local IP and removes the last number to get the network prefix. Then, it pings every address from 1 to 255. The first version printed the full ping output for every single address, resulting in 255 walls of text. I fixed this by switching from os.system to os.popen, which allowed me to capture the output and show only the IPs that actually replied. I ran it on my network and discovered 5 devices. One of them I didn’t even know was connected.

Now, I have 15 tools total. The network section is done.