Change test error assumption

Author: dossett

.gitignore

@@ -6,6 +6,7 @@ dist/
 
 # Test files
 .nox/
+venv/
 
 # Coverage files
 .coverage
@@ -14,4 +15,4 @@ nosetests.xml
 
 # IDE files
 .idea
-.vscode
+.vscode

noxfile.py

@@ -47,7 +47,7 @@ def lint(session):
     )
 
 
-@nox.session(python=["3.6", "3.7", "3.8", "3.9"])
+@nox.session(python=["3.6", "3", "3.8", "3.9"])
 @nox.parametrize(
     "oauth2client",
     [
@@ -80,4 +80,4 @@ def unit(session, oauth2client):
 @nox.session(python="3.6")
 def docs(session):
     session.install('.')
-    session.run("python", "describe.py")
+    session.run("python", "describe.py")

tests/test_http.py

@@ -174,10 +174,10 @@ def request(self, *args, **kwargs):
             # set errno to a non-retriable value
             try:
                 # For Windows:
-                ex.errno = socket.errno.WSAECONNREFUSED
+                ex.errno = socket.errno.WSAEHOSTUNREACH
             except AttributeError:
                 # For Linux/Mac:
-                ex.errno = socket.errno.ECONNREFUSED
+                ex.errno = socket.errno.EHOSTUNREACH
             # Now raise the correct timeout error.
             raise ex