[pitboss] phase 12: Track B — Python harness emitter shapes

tests/dynamic_fixtures/python/async/benign.py

@@ -0,0 +1,22 @@
+"""Phase 12 — async coroutine, benign."""
+import asyncio
+import re
+import subprocess
+
+_VALID_HOST = re.compile(r"^[A-Za-z0-9.-]{1,253}$")
+
+
+async def run_ping(host):
+    await asyncio.sleep(0)
+    if not _VALID_HOST.fullmatch(host or ""):
+        print("invalid host")
+        return
+    result = subprocess.run(
+        ["ping", "-c", "1", host],
+        shell=False,
+        capture_output=True,
+        text=True,
+        timeout=5,
+    )
+    print(result.stdout)
+    print(result.stderr, end="")