Deprecate LSGM helpers in asreview.__init__.py (#1433)

asreview/__init__.py

@@ -16,9 +16,6 @@
 from asreview.data.base import load_data
 from asreview.io.utils import list_readers
 from asreview.io.utils import list_writers
-from asreview.models.feature_extraction.embedding_lstm import load_embedding
-from asreview.models.feature_extraction.embedding_lstm import sample_embedding
-from asreview.models.feature_extraction.embedding_lstm import text_to_features
 from asreview.project import ASReviewProject
 from asreview.project import open_state
 from asreview.utils import asreview_path
@@ -38,3 +35,8 @@
     "list_writers",
     "open_state",
 ]
+
+# deprecated in __init__.py, use asreview.models.feature_extraction instead
+from asreview._deprecated import load_embedding
+from asreview._deprecated import sample_embedding
+from asreview._deprecated import text_to_features

asreview/_deprecated.py

@@ -0,0 +1,42 @@
+import functools
+import warnings
+
+from asreview.models.feature_extraction.embedding_lstm import load_embedding as _load_embedding    # NOQA
+from asreview.models.feature_extraction.embedding_lstm import sample_embedding as _sample_embedding    # NOQA
+from asreview.models.feature_extraction.embedding_lstm import text_to_features as _text_to_features    # NOQA
+
+
+def _deprecated_func(msg):
+    def dec(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kwargs):
+            warnings.warn(msg)
+            return func(*args, **kwargs)
+
+        return wrapper
+
+    return dec
+
+
+@_deprecated_func(
+    "Importing load_embedding from asreview.load_embedding is deprecated, "
+    "use asreview.models.feature_extraction.load_embedding instead"
+)
+def load_embedding(*args, **kwargs):
+    return _load_embedding(*args, **kwargs)
+
+
+@_deprecated_func(
+    "Importing sample_embedding from asreview.sample_embedding is deprecated, "
+    "use asreview.models.feature_extraction.sample_embedding instead"
+)
+def sample_embedding(*args, **kwargs):
+    return _sample_embedding(*args, **kwargs)
+
+
+@_deprecated_func(
+    "Importing text_to_features from asreview.text_to_features is deprecated, "
+    "use asreview.models.feature_extraction.text_to_features instead"
+)
+def text_to_features(*args, **kwargs):
+    return _text_to_features(*args, **kwargs)