temp disable

Author: bmartinn

src/pip/_internal/req/__init__.py

@@ -65,7 +65,7 @@ def install_given_reqs(
 
     install_args = [install_options, global_options, args, kwargs]
 
-    if Pool is not None:
+    if Pool is not None and False:
         # first let's try to install in parallel, if we fail we do it by order.
         pool = Pool()
         try: