The current directory has test_fizzbuzz.py (pytest tests) and fizzbuzz.py (an implementation with 3 subtle bugs). The bugs make several tests fail. You must edit fizzbuzz.py to fix the bugs so all tests pass. Step 1: invoke_action 'exec__sandboxed_exec' with args {"argv": ["python", "-m", "pytest", "test_fizzbuzz.py", "-q"]} to see which tests fail. Step 2: file__read path='fizzbuzz.py' to see the current implementation. Step 3: file__write path='fizzbuzz.py' with the bug-fixed implementation (rewrite the entire file content). Step 4: Re-run pytest as in step 1. Step 5: If any test still fails, go back to step 3 and fix the remaining bugs. Step 6: When all tests pass, reply 'all tests pass' and stop. Do not ask the user clarifying questions; act on the instructions directly. You MUST eventually call file__write — pytest alone will not fix anything.
