commit 5080909b4cd71578de301eaeb791afef342fbaf3
author Masood Malekghassemi <soltanmm@users.noreply.github.com> Sat Jan 30 14:26:24 2016 -0800
committer Masood Malekghassemi <soltanmm@users.noreply.github.com> Sat Jan 30 14:27:28 2016 -0800
tree 30705e5f7c814cc22e69e7ac0d7838d7bb91cec1
parent 097070fe207728156205c04c2e7506776af18090

Pass undiagnosed errors to the user unadulterated

src/python/grpcio/commands.py

diff --git a/src/python/grpcio/commands.py b/src/python/grpcio/commands.py
index 3e3c72f..98ad2e5 100644
--- a/src/python/grpcio/commands.py
+++ b/src/python/grpcio/commands.py
@@ -320,11 +320,11 @@
         extension.extra_link_args += list(BuildExt.LINK_OPTIONS[compiler])
     try:
       build_ext.build_ext.build_extensions(self)
-    except KeyboardInterrupt:
-      raise
     except Exception as error:
-      support.diagnose_build_ext_error(self, error, traceback.format_exc())
-      raise CommandError("Failed `build_ext` step.")
+      formatted_exception = traceback.format_exc()
+      support.diagnose_build_ext_error(self, error, formatted_exception)
+      raise CommandError(
+          "Failed `build_ext` step:\n{}".format(formatted_exception))
 
 
 class Gather(setuptools.Command):