Fix DuplicatedKeysError

ar_cov19.py

@@ -15,10 +15,7 @@
 """TODO: Add a description here."""
 
 
-import glob
-import os
-
-import pandas as pd
+import csv
 
 import datasets
 
@@ -129,11 +126,10 @@ class ArCov19(datasets.GeneratorBasedBuilder):
         # TODO: This method will receive as arguments the `gen_kwargs` defined in the previous `_split_generators` method.
         # It is in charge of opening the given file and yielding (key, example) tuples from the dataset
         # The key is not important, it's more here for legacy reason (legacy from tfds)
+        id_ = 0
         for fname in data_files:
-
-            df = pd.read_csv(fname, names=["tweetID"])
-            for id_, record in df.iterrows():
-
-                tweetID = record["tweetID"]
-
-                yield str(id_), {"tweetID": tweetID}
+            with open(fname, newline='') as csvfile:
+                reader = csv.DictReader(csvfile, fieldnames=["tweetID"])
+                for row in reader:
+                    yield id_, row
+                    id_ += 1