Python 3 Web Server & Tools - Simple Guide

This guide demonstrates useful Python 3 commands for web development and debugging.

Setting up a Simple Web Server

To start a basic web server in your current directory, use the following commands:

# Python 3
python -m http.server 8000

This will start the server on port 8000. Access it via http://127.0.0.1:8000

Debugging with SMTP Server

For debugging email-related issues, a simple SMTP server can be helpful. This example discards messages but prints them to your console:

# SMTP-Server for debugging, messages will be discarded, and printed on stdout.
python -m smtpd -n -c DebuggingServer localhost:1025

JSON Handling

Use the json.tool module for pretty-printing JSON data:

# Pretty print a json
python -m json.tool foo.json

Remember to replace foo.json with your JSON file.

Further Resources

• Python http.server documentation
• Python json module documentation
• HTTP/1.1 specification