Fix the setup file

.travis.yml

@@ -6,3 +6,4 @@ install:
   - pipenv install --dev
 script:
   - invoke test
+  - python setup.py sdist

setup.py

@@ -3,17 +3,22 @@
 
 from setuptools import find_packages
 from sslyze import __author__, __email__, __version__, PROJECT_URL
-from cx_Freeze import Executable
 
 # Setup file based on https://github.com/pypa/sampleproject/blob/master/setup.py
 root_path = path.abspath(path.dirname(__file__))
 
 # For cx_freeze builds, we need a special setup() function
 if len(sys.argv) > 1 and sys.argv[1] == 'build_exe':
     from cx_Freeze import setup
+    from cx_Freeze import Executable
 else:
     from setuptools import setup
 
+    # Create fake Executable that does nothing so the setup.py file can be used on Linux
+    class Executable:
+        def __init__(self, script, targetName):
+            pass
+
 
 def get_long_description():
     """Convert the README file into the long description.