Update sci_lay.py

sci_lay.py

@@ -3,6 +3,8 @@
 import gzip
 import json
 import os
+import random
+import string
 
 import datasets
 
@@ -143,9 +145,10 @@ class SciLay(datasets.GeneratorBasedBuilder):
         for paths_per_journal in paths:
             for path in paths_per_journal:
                 with open(path, "rb") as fin:
-                    for index, row in enumerate(fin):
+                    for row in fin:
                         json_obj = json.loads(row)
-                        yield index, {
+                        unique_key = f"{json_obj[_DOI]}_{generate_random_string()}"
+                        yield unique_key, {
                             _DOI: json_obj[_DOI],
                             _PMCID: json_obj[_PMCID],
                             _SUMMARY: json_obj[_SUMMARY],
@@ -156,4 +159,6 @@ class SciLay(datasets.GeneratorBasedBuilder):
                         }
 
 
-
+def generate_random_string(length=10):
+    letters = string.ascii_lowercase + string.ascii_uppercase
+    return ''.join(random.choice(letters) for _ in range(length))