fix bug introduced in last commit

proof-pile.py

@@ -140,7 +140,7 @@ class ProofPile(datasets.GeneratorBasedBuilder):
         key = 0 
         for name in data_files: 
             with open(name) as f: 
-                instances = [json.load(x) for x in f.readlines() if x]
+                instances = [json.loads(x) for x in f.readlines() if x]
             for instance in instances: 
                 yield key, {"text": instance["text"], 
                         "meta": json.dumps(instance["meta"])}