fix issue555: just add "errors" attribute to internal Capture stream.

CHANGELOG

@@ -8,6 +8,9 @@ NEXT
 - fix issue437 where assertion rewriting could cause pytest-xdist slaves
   to collect different tests. Thanks Bruno Oliveira.
 
+- fix issue555: add "errors" attribute to capture-streams to satisfy
+  some distutils and possibly other code accessing sys.stdout.errors.
+
 - fix issue547 capsys/capfd also work when output capturing ("-s") is disabled.
 
 - address issue170: allow pytest.mark.xfail(...) to specify expected exceptions via

_pytest/__init__.py

@@ -1,2 +1,2 @@
 #
-__version__ = '2.6.1.dev2'
+__version__ = '2.6.1.dev3'

_pytest/capture.py

@@ -223,6 +223,7 @@ def safe_text_dupfile(f, mode, default_encoding="UTF8"):
 
 
 class EncodedFile(object):
+    errors = "strict"  # possibly needed by py3 code (issue555)
     def __init__(self, buffer, encoding):
         self.buffer = buffer
         self.encoding = encoding

setup.py

@@ -27,7 +27,7 @@ def main():
         name='pytest',
         description='pytest: simple powerful testing with Python',
         long_description=long_description,
-        version='2.6.1.dev2',
+        version='2.6.1.dev3',
         url='http://pytest.org',
         license='MIT license',
         platforms=['unix', 'linux', 'osx', 'cygwin', 'win32'],

testing/test_capture.py

@@ -1012,3 +1012,13 @@ def test_capturing_and_logging_fundamentals(testdir, method):
     """)
     assert "atexit" not in result.stderr.str()
 
+
+def test_error_attribute_issue555(testdir):
+    testdir.makepyfile("""
+        import sys
+        def test_capattr():
+            assert sys.stdout.errors == "strict"
+            assert sys.stderr.errors == "strict"
+    """)
+    reprec = testdir.inline_run()
+    reprec.assertoutcome(passed=1)