Fix lints.

src/allmydata/check_results.py

@@ -61,7 +61,7 @@ class CheckResults(object):
         # On Python 2, we can mix bytes and Unicode. On Python 3, we want
         # unicode.
         if isinstance(summary, bytes):
-            summary = unicode(summary, "utf-8")
+            summary = str(summary, "utf-8")
         assert isinstance(summary, str)  # should be a single string
         self._summary = summary
         assert not isinstance(report, str) # should be list of strings

src/allmydata/test/cli/test_list.py

@@ -9,7 +9,7 @@ from allmydata.immutable import upload
 from allmydata.interfaces import MDMF_VERSION, SDMF_VERSION
 from allmydata.mutable.publish import MutableData
 from ..no_network import GridTestMixin
-from allmydata.util.encodingutil import quote_output, get_io_encoding
+from allmydata.util.encodingutil import quote_output
 from .common import CLITestMixin
 
 

src/allmydata/test/test_encodingutil.py

@@ -65,7 +65,7 @@ from allmydata.test.common_util import (
 from allmydata.util import encodingutil, fileutil
 from allmydata.util.encodingutil import unicode_to_url, \
     unicode_to_output, quote_output, quote_path, quote_local_unicode_path, \
-    quote_filepath, unicode_platform, listdir_unicode, FilenameEncodingError, \
+    quote_filepath, unicode_platform, listdir_unicode, \
     get_filesystem_encoding, to_bytes, from_utf8_or_none, _reload, \
     to_filepath, extend_filepath, unicode_from_filepath, unicode_segments_from, \
     unicode_to_argv