Create cli.py

cli.py

@@ -0,0 +1,18 @@
+import csv
+import json
+import sys
+from scorer import score
+
+def load(path):
+    with open(path, encoding="utf-8", newline="") as f:
+        return list(csv.DictReader(f))
+
+if __name__ == "__main__":
+    if len(sys.argv) != 3:
+        raise SystemExit("Usage: python cli.py predictions.csv references.csv")
+
+    predictions = load(sys.argv[1])
+    references = load(sys.argv[2])
+
+    result = score(predictions, references)
+    print(json.dumps(result, indent=2))