Add colour to `pprint` output

[hugovk]

Feature or enhancement

Proposal:

We can use the existing syntax theme to add colour to the output of:

• pprint.pp(data)
• pprint.pprint(data)
• pprint.PrettyPrinter().pprint(data)

cpython/Lib/_colorize.py

Lines 312 to 323 in 9b22261

	class Syntax(ThemeSection):
	prompt: str = ANSIColors.BOLD_MAGENTA
	keyword: str = ANSIColors.BOLD_BLUE
	keyword_constant: str = ANSIColors.BOLD_BLUE
	builtin: str = ANSIColors.CYAN
	comment: str = ANSIColors.RED
	string: str = ANSIColors.GREEN
	number: str = ANSIColors.YELLOW
	op: str = ANSIColors.RESET
	definition: str = ANSIColors.BOLD
	soft_keyword: str = ANSIColors.BOLD_BLUE
	reset: str = ANSIColors.RESET

As usual, this will respect the environment variables to control colour and the output stream's capabilities.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-145217: Add colour to pprint output #145218