Test, validate and match regular expressions
Matches Markdown-formatted Python snippets in the classic r/ProgrammerHumor joke format: a code block (triple backticks, optionally tagged 'python') or inline code containing an 'import' statement (with optional 'from X' prefix), optional intermediate semicolon-terminated lines, and a final 'return' statement. Useful for scraping or filtering meme comments like import motivation\nreturn motivation from Reddit threads.