diff --git a/pelican/__init__.py b/pelican/__init__.py
index fa636bb0..70013804 100644
--- a/pelican/__init__.py
+++ b/pelican/__init__.py
@@ -111,10 +111,10 @@ class Pelican(object):
             structure = self.settings['ARTICLE_PERMALINK_STRUCTURE']
 
             # Convert %(variable) into {variable}.
-            structure = re.sub(r'%\((\w+)\)s', '{\g<1>}', structure)
+            structure = re.sub(r'%\((\w+)\)s', r'{\g<1>}', structure)
 
             # Convert %x into {date:%x} for strftime
-            structure = re.sub(r'(%[A-z])', '{date:\g<1>}', structure)
+            structure = re.sub(r'(%[A-z])', r'{date:\g<1>}', structure)
 
             # Strip a / prefix
             structure = re.sub('^/', '', structure)
diff --git a/pelican/readers.py b/pelican/readers.py
index afc0c4bf..46055962 100644
--- a/pelican/readers.py
+++ b/pelican/readers.py
@@ -636,13 +636,13 @@ def path_metadata(full_path, source_path, settings=None):
 
 
 def parse_path_metadata(source_path, settings=None, process=None):
-    """Extract a metadata dictionary from a file's path
+    r"""Extract a metadata dictionary from a file's path
 
     >>> import pprint
     >>> settings = {
-    ...     'FILENAME_METADATA': '(?P<slug>[^.]*).*',
+    ...     'FILENAME_METADATA': r'(?P<slug>[^.]*).*',
     ...     'PATH_METADATA':
-    ...         '(?P<category>[^/]*)/(?P<date>\d{4}-\d{2}-\d{2})/.*',
+    ...         r'(?P<category>[^/]*)/(?P<date>\d{4}-\d{2}-\d{2})/.*',
     ...     }
     >>> reader = BaseReader(settings=settings)
     >>> metadata = parse_path_metadata(
@@ -650,9 +650,9 @@ def parse_path_metadata(source_path, settings=None, process=None):
     ...     settings=settings,
     ...     process=reader.process_metadata)
     >>> pprint.pprint(metadata)  # doctest: +ELLIPSIS
-    ... {'category': <pelican.urlwrappers.Category object at ...>,
-    ...  'date': SafeDatetime(2013, 1, 1, 0, 0),
-    ...  'slug': 'my-slug'}
+    {'category': <pelican.urlwrappers.Category object at ...>,
+     'date': SafeDatetime(2013, 1, 1, 0, 0),
+     'slug': 'my-slug'}
     """
     metadata = {}
     dirname, basename = os.path.split(source_path)
diff --git a/pelican/tests/test_contents.py b/pelican/tests/test_contents.py
index 11fa958a..56928b81 100644
--- a/pelican/tests/test_contents.py
+++ b/pelican/tests/test_contents.py
@@ -105,7 +105,7 @@ class TestPage(LoggedTestCase):
         self.assertEqual(page._get_summary(), TEST_SUMMARY)
         self.assertLogCountEqual(
                 count=1,
-                msg="_get_summary\(\) has been deprecated since 3\.6\.4\. "
+                msg=r"_get_summary\(\) has been deprecated since 3\.6\.4\. "
                     "Use the summary decorator instead",
                 level=logging.WARNING)
 
diff --git a/pelican/tests/test_readers.py b/pelican/tests/test_readers.py
index 0d22bf44..4db4938e 100644
--- a/pelican/tests/test_readers.py
+++ b/pelican/tests/test_readers.py
@@ -67,7 +67,7 @@ class TestAssertDictHasSubset(ReaderTest):
         six.assertRaisesRegex(
             self,
             AssertionError,
-            'Expected.*key-c.*to have value.*val-c.*but was not in Dict',
+            r'Expected.*key-c.*to have value.*val-c.*but was not in Dict',
             self.assertDictHasSubset,
             self.dictionary,
             {'key-c': 'val-c'})
@@ -76,7 +76,7 @@ class TestAssertDictHasSubset(ReaderTest):
         six.assertRaisesRegex(
             self,
             AssertionError,
-            'Expected .*key-a.* to have value .*val-b.* but was .*val-a.*',
+            r'Expected .*key-a.* to have value .*val-b.* but was .*val-a.*',
             self.assertDictHasSubset,
             self.dictionary,
             {'key-a': 'val-b'})
@@ -139,7 +139,7 @@ class RstReaderTest(ReaderTest):
 
         page = self.read_file(
             path='2012-11-29_rst_w_filename_meta#foo-bar.rst',
-            FILENAME_METADATA='(?P<date>\d{4}-\d{2}-\d{2}).*')
+            FILENAME_METADATA=r'(?P<date>\d{4}-\d{2}-\d{2}).*')
         expected = {
             'category': 'yeah',
             'author': 'Alexis Métaireau',
@@ -152,9 +152,9 @@ class RstReaderTest(ReaderTest):
         page = self.read_file(
             path='2012-11-29_rst_w_filename_meta#foo-bar.rst',
             FILENAME_METADATA=(
-                '(?P<date>\d{4}-\d{2}-\d{2})'
-                '_(?P<Slug>.*)'
-                '#(?P<MyMeta>.*)-(?P<author>.*)'))
+                r'(?P<date>\d{4}-\d{2}-\d{2})'
+                r'_(?P<Slug>.*)'
+                r'#(?P<MyMeta>.*)-(?P<author>.*)'))
         expected = {
             'category': 'yeah',
             'author': 'Alexis Métaireau',
@@ -169,7 +169,7 @@ class RstReaderTest(ReaderTest):
     def test_article_with_optional_filename_metadata(self):
         page = self.read_file(
             path='2012-11-29_rst_w_filename_meta#foo-bar.rst',
-            FILENAME_METADATA='(?P<date>\d{4}-\d{2}-\d{2})?')
+            FILENAME_METADATA=r'(?P<date>\d{4}-\d{2}-\d{2})?')
         expected = {
             'date': SafeDatetime(2012, 11, 29),
             'reader': 'rst',
@@ -178,7 +178,7 @@ class RstReaderTest(ReaderTest):
 
         page = self.read_file(
             path='article.rst',
-            FILENAME_METADATA='(?P<date>\d{4}-\d{2}-\d{2})?')
+            FILENAME_METADATA=r'(?P<date>\d{4}-\d{2}-\d{2})?')
         expected = {
             'reader': 'rst',
         }
@@ -200,9 +200,9 @@ class RstReaderTest(ReaderTest):
         page_metadata = self.read_file(
             path=input_with_metadata,
             FILENAME_METADATA=(
-                '(?P<date>\d{4}-\d{2}-\d{2})'
-                '_(?P<Slug>.*)'
-                '#(?P<MyMeta>.*)-(?P<author>.*)'
+                r'(?P<date>\d{4}-\d{2}-\d{2})'
+                r'_(?P<Slug>.*)'
+                r'#(?P<MyMeta>.*)-(?P<author>.*)'
             ),
             EXTRA_PATH_METADATA={
                 input_with_metadata: {
@@ -250,9 +250,9 @@ class RstReaderTest(ReaderTest):
         page = self.read_file(
             path=input_file_path,
             FILENAME_METADATA=(
-                '(?P<date>\d{4}-\d{2}-\d{2})'
-                '_(?P<Slug>.*)'
-                '#(?P<MyMeta>.*)-(?P<orginalauthor>.*)'
+                r'(?P<date>\d{4}-\d{2}-\d{2})'
+                r'_(?P<Slug>.*)'
+                r'#(?P<MyMeta>.*)-(?P<orginalauthor>.*)'
             ),
             EXTRA_PATH_METADATA={
                 input_file_path: {
@@ -557,7 +557,7 @@ class MdReaderTest(ReaderTest):
 
         page = self.read_file(
             path='2012-11-30_md_w_filename_meta#foo-bar.md',
-            FILENAME_METADATA='(?P<date>\d{4}-\d{2}-\d{2}).*')
+            FILENAME_METADATA=r'(?P<date>\d{4}-\d{2}-\d{2}).*')
         expected = {
             'category': 'yeah',
             'author': 'Alexis Métaireau',
@@ -568,9 +568,9 @@ class MdReaderTest(ReaderTest):
         page = self.read_file(
             path='2012-11-30_md_w_filename_meta#foo-bar.md',
             FILENAME_METADATA=(
-                '(?P<date>\d{4}-\d{2}-\d{2})'
-                '_(?P<Slug>.*)'
-                '#(?P<MyMeta>.*)-(?P<author>.*)'))
+                r'(?P<date>\d{4}-\d{2}-\d{2})'
+                r'_(?P<Slug>.*)'
+                r'#(?P<MyMeta>.*)-(?P<author>.*)'))
         expected = {
             'category': 'yeah',
             'author': 'Alexis Métaireau',
@@ -583,7 +583,7 @@ class MdReaderTest(ReaderTest):
     def test_article_with_optional_filename_metadata(self):
         page = self.read_file(
             path='2012-11-30_md_w_filename_meta#foo-bar.md',
-            FILENAME_METADATA='(?P<date>\d{4}-\d{2}-\d{2})?')
+            FILENAME_METADATA=r'(?P<date>\d{4}-\d{2}-\d{2})?')
         expected = {
             'date': SafeDatetime(2012, 11, 30),
             'reader': 'markdown',
@@ -592,7 +592,7 @@ class MdReaderTest(ReaderTest):
 
         page = self.read_file(
             path='empty.md',
-            FILENAME_METADATA='(?P<date>\d{4}-\d{2}-\d{2})?')
+            FILENAME_METADATA=r'(?P<date>\d{4}-\d{2}-\d{2})?')
         expected = {
             'reader': 'markdown',
         }
diff --git a/pelican/tools/pelican_import.py b/pelican/tools/pelican_import.py
index 204ab7b0..ef4a20e0 100755
--- a/pelican/tools/pelican_import.py
+++ b/pelican/tools/pelican_import.py
@@ -88,7 +88,7 @@ def decode_wp_content(content, br=True):
     content = re.sub(r'<p><blockquote([^>]*)>', "<blockquote\\1><p>", content)
     content = content.replace('</blockquote></p>', '</p></blockquote>')
     content = re.sub(r'<p>\s*(</?' + allblocks + '[^>]*>)', "\\1", content)
-    content = re.sub(r'(</?' + allblocks + '[^>]*>)\s*</p>', "\\1", content)
+    content = re.sub(r'(</?' + allblocks + r'[^>]*>)\s*</p>', "\\1", content)
     if br:
         def _preserve_newline(match):
             return match.group(0).replace("\n", "<WPPreserveNewline />")