Remove Python 3.7 specific code

Signed-off-by: Antoni Baum <antoni.baum@protonmail.com>

pycaret/__init__.py

@@ -1,20 +1,3 @@
-import os
-import sys
-
-# Fix for joblib on 3.7
-# Otherwise, it will default to cloudpickle which
-# uses pickle5, causing exceptions with joblib
-# THIS HAS TO BE DONE BEFORE OTHER IMPORTS HERE
-if sys.version_info < (3, 8):
-    import pycaret.internal.cloudpickle_compat
-
-    os.environ["LOKY_PICKLER"] = pycaret.internal.cloudpickle_compat.__name__
-
-    from joblib.externals.loky.backend.reduction import set_loky_pickler
-
-    set_loky_pickler(pycaret.internal.cloudpickle_compat.__name__)
-
-
 from pycaret.utils._show_versions import show_versions
 
 version_ = "3.1.0"

pycaret/internal/preprocess/transformers.py

@@ -182,11 +182,7 @@ def _prepare_df(self, X, out):
         # Convert to pandas and assign proper column names
         if not isinstance(out, pd.DataFrame):
             if hasattr(self.transformer, "get_feature_names_out"):
-                try:  # Fails for some estimators in Python 3.7
-                    # TODO: Remove try after dropping support of Python 3.7
-                    columns = self.transformer.get_feature_names_out()
-                except AttributeError:
-                    columns = self._name_cols(out, X)
+                columns = self.transformer.get_feature_names_out()
             elif hasattr(self.transformer, "get_feature_names"):
                 # Some estimators have legacy method, e.g. category_encoders
                 columns = self.transformer.get_feature_names()