Fixed error: 'DataFrame' object has no attribute 'append'

recommenders/models/rlrmc/RLRMCdataset.py

@@ -68,8 +68,8 @@ def _data_processing(self, train, validation=None, test=None, mean_center=True):
         """
         # Data processing and reindexing code is adopted from https://github.com/Microsoft/Recommenders/blob/main/recommenders/models/ncf/dataset.py
         # If validation dataset is None
-        df = train if validation is None else train.append(validation)
-        df = df if test is None else df.append(test)
+        df = train if validation is None else pd.concat([train, validation])
+        df = df if test is None else pd.concat([df, test])
 
         # Reindex user and item index
         if self.user_idx is None:

setup.py

@@ -27,15 +27,15 @@
     version += ".post" + str(int(time.time()))
 
 install_requires = [
-    "pandas>1.5.2,<2.1",  # requires numpy
+    "pandas>1.5.2,<1.6",  # requires numpy
     "scikit-learn>=1.1.3,<2",  # requires scipy
     "numba>=0.57.0,<1",
     "lightfm>=1.17,<2",
-    "lightgbm>=3.3.2,<4",
+    "lightgbm>=3.3.2,<5",
     "memory-profiler>=0.61.0,<1",
     "nltk>=3.8.1,<4",  # requires tqdm
     "seaborn>=0.12.0,<1",  # requires matplotlib
-    "transformers>=4.26.0,<5",  # requires pyyaml, tqdm
+    "transformers>=4.27.0,<5",  # requires pyyaml, tqdm
     "category-encoders>=2.6.0,<3",
     "jinja2>=3.1.0,<3.2",
     "cornac>=1.15.2,<2",  # requires tqdm
@@ -44,8 +44,8 @@
     "scikit-surprise>=1.1.3",
     "scrapbook>=0.5.0,<1.0.0",  # requires tqdm, papermill
     "hyperopt>=0.2.7,<1",
-    "notebook>=6.5.4,<8",  # requires jupyter, ipykernel
-    "locust>=2.15.1,<3",
+    "notebook>=7.0.0,<8",  # requires jupyter, ipykernel
+    "locust>=2.12.2,<3",
 ]
 
 # shared dependencies