changed travis.yml format to test build

.travis.yml

@@ -3,20 +3,21 @@ language: python
 python:
   - "3.6"
   - "3.7"
-# matrix:
-#   fast_finish: true
-#     - name: "Code Style (Black/Flake8)"
-#       install:
-#         - pip install black
-#         - pip install flake8
-#       script:
-#         # Black code style
-#         - black --check --diff pytorch_widedeep tests examples setup.py
-#         # Stop the build if there are Python syntax errors or undefined names
-#         - flake8 . --count --select=E901,E999,F821,F822,F823 --ignore=E266 --show-source --statistics
-#         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-#         - flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --ignore=E203,E266,E501,E722,F401,F403,F405,W503,C901 --statistics
-#       after_success: skip
+matrix:
+  fast_finish: true
+  include:
+    - name: "Code Style (Black/Flake8)"
+      install:
+        - pip install black
+        - pip install flake8
+      script:
+        # Black code style
+        - black --check --diff pytorch_widedeep tests examples setup.py
+        # Stop the build if there are Python syntax errors or undefined names
+        - flake8 . --count --select=E901,E999,F821,F822,F823 --ignore=E266 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        - flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --ignore=E203,E266,E501,E722,F401,F403,F405,W503,C901 --statistics
+      after_success: skip
 install:
   - pip install --upgrade pip
   - pip install .

examples/airbnb_script_multiclass.py

@@ -58,4 +58,4 @@ if __name__ == "__main__":
         n_epochs=1,
         batch_size=32,
         val_split=0.2,
-    )
\ No newline at end of file
+    )

pytorch_widedeep/preprocessing/_preprocessors.py

@@ -16,7 +16,6 @@ from ..utils.image_utils import AspectAwarePreprocessor, SimplePreprocessor
 
 
 class BasePreprocessor(object):
-
     def fit(self, df: pd.DataFrame):
         raise NotImplementedError("Preprocessor must implement this method")