Remove LightFM from core package

examples/02_model_collaborative_filtering/lightfm_deep_dive.ipynb

@@ -22,6 +22,8 @@
             "source": [
                 "This notebook explains the concept of a Factorization Machine based model for recommendation, it also outlines the steps to construct a pure matrix factorization and a Factorization Machine using the [LightFM](https://github.com/lyst/lightfm) package. It also demonstrates how to extract both user and item affinity from a fitted model.\n",
                 "\n",
+                "*NOTE: LightFM is not available in the core package of Recommenders, to run this notebook, install the experimental package with `pip install recommenders[experimental]`.*\n",
+                "\n",
                 "## 1. Factorization Machine model\n",
                 "\n",
                 "### 1.1 Background\n",

recommenders/datasets/movielens.py

@@ -582,7 +582,7 @@ def unique_columns(df, *, columns):
     return not df[columns].duplicated().any()
 
 
-class MockMovielensSchema(pa.SchemaModel):
+class MockMovielensSchema(pa.DataFrameModel):
     """
     Mock dataset schema to generate fake data for testing purpose.
     This schema is configured to mimic the Movielens dataset

setup.py

@@ -30,7 +30,6 @@
     "category-encoders>=2.6.0,<3",  # requires packaging
     "cornac>=1.15.2,<2",  # requires packaging, tqdm
     "hyperopt>=0.2.7,<1",
-    "lightfm>=1.17,<2",  # requires requests
     "lightgbm>=4.0.0,<5",
     "locust>=2.12.2,<3",  # requires jinja2
     "memory-profiler>=0.61.0,<1",
@@ -80,6 +79,7 @@
     # nni needs to be upgraded
     "nni==1.5",
     "pymanopt>=0.2.5",
+    "lightfm>=1.17,<2",
 ]
 
 # The following dependency can be installed as below, however PyPI does not allow direct URLs.

tests/ci/azureml_tests/test_groups.py

@@ -47,8 +47,6 @@
         "tests/functional/examples/test_notebooks_python.py::test_geoimc_functional",  # 1006.19s
         #
         "tests/functional/examples/test_notebooks_python.py::test_benchmark_movielens_cpu",  # 58s
-        #
-        "tests/functional/examples/test_notebooks_python.py::test_lightfm_functional",
     ],
     "group_cpu_003": [  # Total group time: 2253s
         "tests/data_validation/recommenders/datasets/test_criteo.py::test_download_criteo_sample",  # 1.05s
@@ -237,10 +235,6 @@
         "tests/unit/recommenders/models/test_geoimc.py::test_imcproblem",
         "tests/unit/recommenders/models/test_geoimc.py::test_inferer_init",
         "tests/unit/recommenders/models/test_geoimc.py::test_inferer_infer",
-        "tests/unit/recommenders/models/test_lightfm_utils.py::test_interactions",
-        "tests/unit/recommenders/models/test_lightfm_utils.py::test_fitting",
-        "tests/unit/recommenders/models/test_lightfm_utils.py::test_sim_users",
-        "tests/unit/recommenders/models/test_lightfm_utils.py::test_sim_items",
         "tests/unit/recommenders/models/test_sar_singlenode.py::test_init",
         "tests/unit/recommenders/models/test_sar_singlenode.py::test_fit",
         "tests/unit/recommenders/models/test_sar_singlenode.py::test_predict",
@@ -453,3 +447,14 @@
         "tests/unit/examples/test_notebooks_gpu.py::test_gpu_vm",
     ],
 }
+
+# Experimental are additional test groups that require to install extra dependencies: pip install .[experimental]
+experimental_test_groups = {
+    "group_cpu_001": [
+        "tests/unit/recommenders/models/test_lightfm_utils.py::test_interactions",
+        "tests/unit/recommenders/models/test_lightfm_utils.py::test_fitting",
+        "tests/unit/recommenders/models/test_lightfm_utils.py::test_sim_users",
+        "tests/unit/recommenders/models/test_lightfm_utils.py::test_sim_items",
+        "tests/functional/examples/test_notebooks_python.py::test_lightfm_functional",
+    ]
+}