Deprecate dataset (#5)

- Add deprecation warning to dataset script (62985b322fff2b005b22c7527108376db24ee077)
- Add deprecation warning to dataset card (ff8494eeae592f55abe2f1c7c2aaa54ecfb1c049)

README.md

@@ -200,6 +200,10 @@ train-eval-index:
 
 ### Dataset Summary
 
+<div class="course-tip course-tip-orange bg-gradient-to-br dark:bg-gradient-to-r before:border-orange-500 dark:before:border-orange-800 from-orange-50 dark:from-gray-900 to-white dark:to-gray-950 border border-orange-50 text-orange-700 dark:text-gray-400">
+  <p><b>Deprecated:</b> Dataset "banking77" is deprecated and will be deleted. Use "<a href="https://huggingface.co/datasets/PolyAI/banking77">PolyAI/banking77</a>" instead.</p>
+</div>
+
 Dataset composed of online banking queries annotated with their corresponding intents.
 
 BANKING77 dataset provides a very fine-grained set of intents in a banking domain.

banking77.py

@@ -16,6 +16,7 @@
 
 
 import csv
+import warnings
 
 import datasets
 from datasets.tasks import TextClassification
@@ -55,6 +56,10 @@ class Banking77(datasets.GeneratorBasedBuilder):
     VERSION = datasets.Version("1.1.0")
 
     def _info(self):
+        warnings.warn(
+            "Dataset 'banking77' is deprecated and will be deleted. Use 'PolyAI/banking77' instead.",
+            FutureWarning,
+        )
         features = datasets.Features(
             {
                 "text": datasets.Value("string"),