fix linter warnings

humanfriendly/tests.py

@@ -787,8 +787,8 @@ def test_spinner(self):
                         .replace(ANSI_HIDE_CURSOR, ''))
         lines = [line for line in output.split(ANSI_ERASE_LINE) if line]
         self.assertTrue(len(lines) > 0)
-        self.assertTrue(all('test spinner' in l for l in lines))
-        self.assertTrue(all('%' in l for l in lines))
+        self.assertTrue(all('test spinner' in line for line in lines))
+        self.assertTrue(all('%' in line for line in lines))
         self.assertEqual(sorted(set(lines)), sorted(lines))
 
     def test_automatic_spinner(self):
@@ -952,7 +952,7 @@ def test_cli(self):
         # https://github.com/xolox/python-humanfriendly/issues/28
         returncode, output = run_cli(main, '--demo')
         assert returncode == 0
-        lines = [ansi_strip(l) for l in output.splitlines()]
+        lines = [ansi_strip(line) for line in output.splitlines()]
         assert "Text styles:" in lines
         assert "Foreground colors:" in lines
         assert "Background colors:" in lines

humanfriendly/usage.py

@@ -258,7 +258,7 @@ def render_usage(text):
                 ('\n\n'.join(render_paragraph(p, meta_variables) for p in split_paragraphs(description))).rstrip(),
             ])
         csv_lines = csv_buffer.getvalue().splitlines()
-        output.append('\n'.join('   %s' % l for l in csv_lines))
+        output.append('\n'.join('   %s' % line for line in csv_lines))
     logger.debug("Rendered output: %s", output)
     return '\n\n'.join(trim_empty_lines(o) for o in output)