Use sys.executable instead of a hardcoded executable name/path of Python

appiumtests/logintest.py

@@ -10,6 +10,7 @@ from appium.webdriver.common.appiumby import AppiumBy
 from selenium.webdriver.support.ui import WebDriverWait
 import time
 import subprocess
+import sys
 
 class LoginTest(unittest.TestCase):
     @classmethod
@@ -20,7 +21,7 @@ class LoginTest(unittest.TestCase):
         self.driver = webdriver.Remote(
             command_executor='http://127.0.0.1:4723',
             desired_capabilities=desired_caps)
-        subprocess.Popen(["python","login-server.py"])
+        subprocess.Popen([sys.executable, "login-server.py"])
 
     def setUp(self):
         pass