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-rw-r--r--coverage/cmdline.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/coverage/cmdline.py b/coverage/cmdline.py
index a9af9f31..9c908b14 100644
--- a/coverage/cmdline.py
+++ b/coverage/cmdline.py
@@ -3,6 +3,8 @@
"""Command-line support for coverage.py."""
+from __future__ import print_function
+
import glob
import optparse
import os.path
@@ -533,8 +535,8 @@ class CoverageScript(object):
"""Display an error message, or the named topic."""
assert error or topic or parser
if error:
- print(error)
- print("Use '%s help' for help." % (self.program_name,))
+ print(error, file=sys.stderr)
+ print("Use '%s help' for help." % (self.program_name,), file=sys.stderr)
elif parser:
print(parser.format_help().strip())
else: