Return SameEnvironment as a default, fixes #1226, #1196

jedi/api/environment.py

@@ -184,10 +184,7 @@ def get_default_environment():
     if virtual_env is not None:
         return virtual_env
 
-    for environment in find_system_environments():
-        return environment
-
-    # If no Python Environment is found, use the environment we're already
+    # If no VirtualEnv is found, use the environment we're already
     # using.
     return SameEnvironment()