Rich

Rich is a library for rich - i.e. coloured, styled and formatted - printing to the console.

TLDR

Just copy and paste this to the beginning of your code:

import rich
from rich import print        # replace default print
from rich import print_json   # pretty-print JSON
from rich import pretty
pretty.install()              # add rich to the REPL

If you would like to record the terminal output, use the following:

from rich.console import Console
console = Console(record=True)

# console.log(...)
# console.print(...)
# console.print_json(...)

console.save_html('export.html')

Other Features

• progress bars

• logging handler

  • also see Tools and Technologies > Python > Logging

Demo

The following code

from rich.console import Console
console = Console(record=True)

# console message
console.log('This is a console.log() message\n')

# pretty printing
console.print("Let's define and print a dictionary 'd':")
d = {'a': 1, 'b': 2, 'c': list(range(3))}
console.print(f'd = {d}\n')

# JSON pretty printing
import json
console.print("And now let's convert it to JSON and pretty-print it")
console.print_json(json.dumps(d))

# export and save the console output as html
console.save_html('rich-demo.html')

will lead to output that looks like this:

And it will also create a file rich-demo.html that contains an export of the console as HTML - which looks like this:

rich-demo.html

[01:39:03] This is a console.log() message                                                              rich-demo.py:5
                                                                                                                      
Let's define and print a dictionary 'd':
d = {'a': 1, 'b': 2, 'c': [0, 1, 2]}

And now let's convert it to JSON and pretty-print it
{
  "a": 1,
  "b": 2,
  "c": [
    0,
    1,
    2
  ]
}