machine is a function

.travis.yml

@@ -30,8 +30,7 @@ py37-steps: &py37-steps
 
 matrix:
   allow_failures:
-    - python: 2.7  # It is legacy Python after all...
-    # - python: 3.5  # f-strings are available on Python >= 3.6
+    - python: p27-steps  # It is legacy Python after all...
   include:
     - name: "Python 2.7: Run tests"
       <<: *py27-steps

setup_rat.py

@@ -9,17 +9,17 @@
 
 s('pip install -r requirements.txt')
 
-if machine == '':
+if machine() == '':
     print('\nUnable to determine platform.\n')
     exit(1)
-elif machine == 'i386':
+elif machine() == 'i386':
     fileA = 'https://download.lfd.uci.edu/pythonlibs/h2ufg7oq/PyAudio-0.2.11-cp37-cp37m-win32.whl'
     fileB = 'https://download.lfd.uci.edu/pythonlibs/h2ufg7oq/pyHook-1.5.1-cp37-cp37m-win32.whl'
-elif machine == 'amd64':
+elif machine() == 'amd64':
     fileA = 'https://download.lfd.uci.edu/pythonlibs/h2ufg7oq/PyAudio-0.2.11-cp37-cp37m-win_amd64.whl'
     fileB = 'https://download.lfd.uci.edu/pythonlibs/h2ufg7oq/pyHook-1.5.1-cp37-cp37m-win_amd64.whl'
 else:
-    print('\n\nYou are probably running a processor like ARM: "' + machine + '". This isn\'t supported due to the lack of dependencies supporting ARM.')
+    print('\n\nYou are probably running a processor like ARM: "' + machine() + '". This isn\'t supported due to the lack of dependencies supporting ARM.')
 
 s('pip install '+fileA)
 s('pip install '+fileB)