Add 02-rg2 solution for python #890

Job	Run time
test_course_definition / lint	1m 1s
test_course_definition / docker_lint	37s
test_course_definition / identify_language_slugs	5s
test_course_definition / go_lint	3s
test_course_definition / js_lint	14s
test_course_definition / markdown_lint	21s
test_course_definition / rust_lint	8s
test_course_definition / validate-schemas	19s
test_course_definition / verify_templates_compiled	26s
test_course_definition / validate-stages-naming	5s
test_course_definition / test (c)	34s
test_course_definition / test (clojure)	59s
test_course_definition / test (cpp)	59s
test_course_definition / test (crystal)	50s
test_course_definition / test (csharp)	58s
test_course_definition / test (elixir)	41s
test_course_definition / test (gleam)	45s
test_course_definition / test (go)	53s
test_course_definition / test (haskell)	57s
test_course_definition / test (java)	58s
test_course_definition / test (javascript)	37s
test_course_definition / test (kotlin)	58s
test_course_definition / test (ocaml)	56s
test_course_definition / test (php)	36s
test_course_definition / test (python)	27s
test_course_definition / test (ruby)	37s
test_course_definition / test (rust)	58s
test_course_definition / test (scala)	57s
test_course_definition / test (swift)	56s
test_course_definition / test (typescript)	57s
test_course_definition / test (zig)	56s
	20m 48s

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