Flake8.

setup.py

@@ -23,6 +23,7 @@ def read(*rnames):
     with open(os.path.join(os.path.dirname(__file__), *rnames)) as f:
         return f.read()
 
+
 setup(
     name="z3c.recipe.tag",
     version='0.9.0.dev0',

src/z3c/recipe/tag/__init__.py

@@ -20,6 +20,7 @@
 import zc.buildout.easy_install
 import zc.recipe.egg
 
+
 class TagsMaker(object):
 
     def __init__(self, buildout, name, options):
@@ -73,7 +74,7 @@ def install(self):
             self.buildout['buildout']['bin-directory'],
             extra_paths=self._delegated.extra_paths,
             initialization=initialization,
-            ))
+        ))
 
         return generated
 
@@ -99,14 +100,15 @@ def getpath(candidates):
     raise RuntimeError(
         'Can\'t find executable for any of: %s' % candidates)
 
+
 class Builder:
     def get_relpaths(self, paths):
         working_dir = os.getcwd()
         return [os.path.relpath(path, working_dir) for path in paths]
 
     def __call__(self, targets=None, languages=None, tag_relative=False):
         if not targets:
-            targets = ('idutils', 'ctags_vi', 'ctags_emacs') # legacy behavior
+            targets = ('idutils', 'ctags_vi', 'ctags_emacs')  # legacy behavior
         self.languages = languages or ''
         self.tag_relative = tag_relative
         paths = [path for path in sys.path
@@ -128,14 +130,18 @@ def __call__(self, targets=None, languages=None, tag_relative=False):
         return results
 
     def _build_idutils(self):
-        return [['mkid'],
-                ['-m',
-                 pkg_resources.resource_filename(
+        return [
+            [
+                'mkid'
+            ], [
+                '-m',
+                pkg_resources.resource_filename(
                     "z3c.recipe.tag", "id-lang.map"),
-                 '-o',
-                 'ID.new'] + self.paths,
-                'ID.new',
-                'ID']
+                '-o',
+                'ID.new'
+            ] + self.paths,
+            'ID.new',
+            'ID']
 
     def _build_ctags_vi(self):
         res = [['ctags-exuberant', 'ctags'],
@@ -167,12 +173,14 @@ def _build_ctags_bbedit(self):
             '--excmd=number', '--tag-relative=no', '--fields=+a+m+n+S']
         return res
 
+
 def append_const(option, opt_str, value, parser, const):
     # 'append_const' action added in Py 2.5, and we're in 2.4 :-(
     if getattr(parser.values, 'targets', None) is None:
         parser.values.targets = []
     parser.values.targets.append(const)
 
+
 def build_tags(args=None):
     parser = optparse.OptionParser()
     parser.add_option('-l', '--languages', dest='languages',
@@ -182,7 +190,7 @@ def build_tags(args=None):
     parser.add_option('-e', '--ctags-emacs', action='callback',
                       callback=append_const, callback_args=('ctags_emacs',),
                       help='flag to build emacs ctags ``TAGS`` file')
-    parser.add_option('-v', '--ctags-vi',  action='callback',
+    parser.add_option('-v', '--ctags-vi', action='callback',
                       callback=append_const, callback_args=('ctags_vi',),
                       help='flag to build vi ctags ``tags`` file')
     parser.add_option('-b', '--ctags-bbedit', action='callback',
@@ -206,6 +214,7 @@ def build_tags(args=None):
     builder(targets, languages=options.languages,
             tag_relative=options.tag_relative)
 
+
 try:
     import paver.easy
 except ImportError:

src/z3c/recipe/tag/tests.py

@@ -10,6 +10,10 @@
 def doctest_tags_recipe():
     """Test for z3c.recipe.tag
 
+        >>> write = write  # noqa: F821 (undefined name)
+        >>> system = system  # noqa: F821 (undefined name)
+        >>> cat = cat  # noqa: F821 (undefined name)
+        >>> join = join  # noqa: F821 (undefined name)
         >>> write('buildout.cfg',
         ... '''
         ... [buildout]
@@ -62,7 +66,7 @@ def tearDown(test):
 checker = renormalizing.RENormalizing([
     zc.buildout.testing.normalize_path,
     # zope.whatever-1.2.3-py2.7.egg -> zope.whatever-pyN.N.egg
-    (re.compile('-[^ /]+-py\d[.]\d(-\S+)?.egg'), '-pyN.N.egg'),
+    (re.compile(r'-[^ /]+-py\d[.]\d(-\S+)?.egg'), '-pyN.N.egg'),
     # #!/path/to/whatever/python3.2mu -> #!/usr/bin/python
     (re.compile('#![^\n]+/python[0-9.mu]*'), '#!/usr/bin/python'),
     # location of this source tree
@@ -72,7 +76,7 @@ def tearDown(test):
     #   Couldn't find index page for 'zc.recipe.egg' (maybe misspelled?)
     # error messages, let's just suppress them
     (re.compile("Couldn't find index page for '[a-zA-Z0-9.]+' "
-     "\(maybe misspelled\?\)\n"), ''),
+     r"\(maybe misspelled\?\)\n"), ''),
     # I've no idea what causes these
     #   Not found: /tmp/tmpJKH0LKbuildouttests/zc.buildout/
     # error messages, let's just suppress them
@@ -84,13 +88,13 @@ def tearDown(test):
     # and zc.buildout has no site isolation, so it finds them there,
     # so it doesn't add them to sys.path in the generated scripts
     checker += renormalizing.RENormalizing([
-        (re.compile("\s*'/sample-buildout/eggs/zc.recipe.egg-pyN.N.egg',\n"),
+        (re.compile(r"\s*'/sample-buildout/eggs/zc.recipe.egg-pyN.N.egg',\n"),
          ''),
-        (re.compile("\s*'/sample-buildout/eggs/zc.buildout-pyN.N.egg',\n"),
+        (re.compile(r"\s*'/sample-buildout/eggs/zc.buildout-pyN.N.egg',\n"),
          ''),
-        (re.compile("\s*'/sample-buildout/eggs/distribute-pyN.N.egg',\n"),
+        (re.compile(r"\s*'/sample-buildout/eggs/distribute-pyN.N.egg',\n"),
          ''),
-        (re.compile("\s*'/sample-buildout/eggs/setuptools-pyN.N.egg',\n"),
+        (re.compile(r"\s*'/sample-buildout/eggs/setuptools-pyN.N.egg',\n"),
          ''),
     ])
 
@@ -99,6 +103,8 @@ def test_suite():
     return unittest.TestSuite([
         doctest.DocTestSuite(
             setUp=setUp, tearDown=tearDown, checker=checker,
-            optionflags=doctest.NORMALIZE_WHITESPACE|doctest.ELLIPSIS|
-                        doctest.REPORT_NDIFF),
+            optionflags=(
+                doctest.NORMALIZE_WHITESPACE
+                | doctest.ELLIPSIS
+                | doctest.REPORT_NDIFF)),
     ])