Avoid “error: None” messages from distutils (#4931).

Thanks to Amaury Forgeot d’Arc and Philip J. Eby.

1 files changed, 2 insertions, 5 deletions

diff --git a/Lib/distutils/core.py b/Lib/distutils/core.py
index 260332a..25d91ba 100644
--- a/Lib/distutils/core.py
+++ b/Lib/distutils/core.py
@@ -11,7 +11,6 @@ import sys
 
 from distutils.debug import DEBUG
 from distutils.errors import *
-from distutils.util import grok_environment_error
 
 # Mainly import these so setup scripts can "from distutils.core import" them.
 from distutils.dist import Distribution
@@ -149,13 +148,11 @@ def setup (**attrs):
         except KeyboardInterrupt:
             raise SystemExit("interrupted")
         except (IOError, os.error) as exc:
-            error = grok_environment_error(exc)
-
             if DEBUG:
-                sys.stderr.write(error + "\n")
+                sys.stderr.write("error: %s\n" % (exc,))
                 raise
             else:
-                raise SystemExit(error)
+                raise SystemExit("error: %s" % (exc,))
 
         except (DistutilsError,
                 CCompilerError) as msg: