communicate with python over a pipe to increase fuzzing performance

scripts/atom.py

@@ -1,13 +1,13 @@
 #!/usr/bin/env python3
 
 import sys
-import portage.dep as dep
+from portage.dep import Atom
 
-input = sys.stdin.read().strip()
-
-try:
-    dep.Atom(input)
-except Exception as e:
-    sys.exit(1)
-
-sys.exit(0)
+for line in sys.stdin.buffer:
+    try:
+        Atom(line.decode().strip())
+        sys.stdout.buffer.write(b"0\n")
+    except:
+        sys.stdout.buffer.write(b"1\n")
+    finally:
+        sys.stdout.buffer.flush()