Fix tests for file_transfer and perceptron.py

Author: cclauss

.travis.yml

@@ -10,13 +10,13 @@ matrix:
     # The following files currently fail pytests.  See issues: #1016, #1044, #1080
     # Here they are run allow_failures mode and when each passes pytest, it can be
     # removed BOTH lists below.  Complex now but simple once all files pass pytest.
-    - env: FILE=pytest machine_learning/linear_regression.py
+    - env: FILE=machine_learning/linear_regression.py
       before_script: true
       script: pytest ${FILE} --doctest-modules
-    - env: FILE=pytest machine_learning/random_forest_classification/random_forest_classification.py
+    - env: FILE=machine_learning/random_forest_classification/random_forest_classification.py
       before_script: true
       script: pytest ${FILE} --doctest-modules
-    - env: FILE=pytest machine_learning/random_forest_regression/random_forest_regression.py
+    - env: FILE=machine_learning/random_forest_regression/random_forest_regression.py
       before_script: true
       script: pytest ${FILE} --doctest-modules
   allow_failures: