Add entry points (#452)

* working

* lint fix

* renamed and added init

* Rename

* fix attrbute

* Updated featuretools

* fix conflict

* WIP on test

* test todo

* fix test

* lint

* working test

* WIP

* WIP

* Added try except to entry points

* dfs added

* working

* move init

* reorder init

* added plugin

* use locals

* comment fixes

featuretools/__init__.py

@@ -1,5 +1,5 @@
-from __future__ import absolute_import
 # flake8: noqa
+from __future__ import absolute_import
 from .config_init import config
 from . import variable_types
 from .entityset.api import *
@@ -16,3 +16,21 @@
 from .feature_base import AggregationFeature, DirectFeature, Feature, FeatureBase, IdentityFeature, TransformFeature
 
 __version__ = '0.6.1'
+
+import pkg_resources
+import sys
+# Call functions registered by other libraries when featuretools is imported
+for entry_point in pkg_resources.iter_entry_points('featuretools_initialize'):
+    try:
+        module = entry_point.load()
+        if hasattr(module, 'initialize'):
+            module.initialize()
+    except Exception:
+        pass
+
+# Load in submodules registered by other libraries into Featuretools namespace
+for entry_point in pkg_resources.iter_entry_points('featuretools_plugin'):
+    try:
+        sys.modules["featuretools." + entry_point.name] = entry_point.load()
+    except Exception:
+        pass

featuretools/primitives/__init__.py

@@ -1,2 +1,13 @@
 # flake8: noqa
 from .api import *
+
+import pkg_resources
+# Load in primitives registered by other libraries into Featuretools namespace
+for entry_point in pkg_resources.iter_entry_points('featuretools_primitives'):
+    try:
+        loaded = entry_point.load()
+        if hasattr(loaded, 'primitives'):
+            for name, obj in loaded.primitives.items():
+                globals()[name] = obj
+    except Exception:
+        pass

featuretools/synthesis/__init__.py

@@ -1,3 +1,3 @@
 from __future__ import absolute_import
 # flake8: noqa
-from .api import *
+from .api import *

featuretools/synthesis/dfs.py

@@ -1,4 +1,5 @@
 import pandas as pd
+import pkg_resources
 
 from .deep_feature_synthesis import DeepFeatureSynthesis
 
@@ -174,6 +175,15 @@ def dfs(entities=None,
     if not isinstance(entityset, EntitySet):
         entityset = EntitySet("dfs", entities, relationships)
 
+    # Call functions registered by other libraries with DFS arguments
+    for entry_point in pkg_resources.iter_entry_points('featuretools_dfs'):
+        try:
+            loaded = entry_point.load()
+            if hasattr(loaded, 'dfs'):
+                loaded.dfs(locals())
+        except Exception:
+            pass
+
     dfs_object = DeepFeatureSynthesis(target_entity, entityset,
                                       agg_primitives=agg_primitives,
                                       trans_primitives=trans_primitives,

featuretools/tests/primitive_tests/test_install_primitives.py

@@ -237,12 +237,6 @@ def test_extract_non_archive_errors(bad_primitives_files_dir):
 
 
 def test_install_packages_from_requirements(primitives_to_install_dir):
-    def pip_freeze():
-        output = subprocess.check_output(['pip', 'freeze'])
-        if not isinstance(output, str):
-            output = output.decode()
-        return output
-
     # make sure dummy module isn't installed
     if "featuretools-pip-tester" in pip_freeze():
         subprocess.check_call(["pip", "uninstall", "-y", "featuretools-pip-tester"])
@@ -305,3 +299,10 @@ def pip_freeze():
 
     assert "featuretools-pip-tester" in pip_freeze()
     subprocess.check_call(["pip", "uninstall", "-y", "featuretools-pip-tester"])
+
+
+def pip_freeze():
+    output = subprocess.check_output(['pip', 'freeze'])
+    if not isinstance(output, str):
+        output = output.decode()
+    return output

setup.py

@@ -46,10 +46,10 @@ def finalize_options(self):
     keywords='feature engineering data science machine learning',
     include_package_data=True,
     entry_points={
-          'console_scripts': [
-              'featuretools = featuretools.__main__:cli'
-          ]
-      },
+        'console_scripts': [
+          'featuretools = featuretools.__main__:cli'
+        ]
+    },
     long_description=long_description,
     long_description_content_type='text/markdown'
 )

test-requirements.txt

@@ -5,4 +5,4 @@ pytest-xdist==1.26.1
 pytest-cov==2.6.1
 fastparquet>=0.1.6
 graphviz>=0.8.4
-s3fs>=0.1.5
+s3fs>=0.1.5