From d7764996e4e08faefaf3564fa71c19751847b55f Mon Sep 17 00:00:00 2001
From: Waylan Limberg <waylan.limberg@icloud.com>
Date: Tue, 24 Jul 2018 11:50:02 -0400
Subject: Add support for PY37 and PYPY3.

---
 .travis.yml                         | 7 ++++++-
 markdown/extensions/legacy_attrs.py | 2 +-
 setup.py                            | 4 ++--
 tox.ini                             | 2 +-
 4 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index bc61d47..01bdbd6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,8 +11,14 @@ matrix:
       env: TOXENV=py35
     - python: '3.6'
       env: TOXENV=py36
+    - python: '3.7'
+      env: TOXENV=py37
+      dist: xenial
+      sudo: true
     - python: 'pypy'
       env: TOXENV=pypy
+    - python: 'pypy3'
+      env: TOXENV=pypy3
     - env: TOXENV=flake8
     - env: TOXENV=checkspelling
 
@@ -37,4 +43,3 @@ after_success:
 branches:
   only:
     - master
-    - md3
diff --git a/markdown/extensions/legacy_attrs.py b/markdown/extensions/legacy_attrs.py
index 280be07..b28223f 100644
--- a/markdown/extensions/legacy_attrs.py
+++ b/markdown/extensions/legacy_attrs.py
@@ -17,7 +17,7 @@ from markdown.treeprocessors import Treeprocessor, isString
 from markdown.extensions import Extension
 
 
-ATTR_RE = re.compile("\{@([^\}]*)=([^\}]*)}")  # {@id=123}
+ATTR_RE = re.compile(r'\{@([^\}]*)=([^\}]*)}')  # {@id=123}
 
 
 class LegacyAttrs(Treeprocessor):
diff --git a/setup.py b/setup.py
index fc9ef0b..9614a49 100755
--- a/setup.py
+++ b/setup.py
@@ -56,6 +56,7 @@ setup(
     maintainer_email='waylan.limberg@icloud.com',
     license='BSD License',
     packages=['markdown', 'markdown.extensions'],
+    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*',
     entry_points={
         'console_scripts': [
             '%s = markdown.__main__:run' % SCRIPT_NAME,
@@ -89,11 +90,10 @@ setup(
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.2',
-        'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
         'Topic :: Communications :: Email :: Filters',
         'Topic :: Internet :: WWW/HTTP :: Dynamic Content :: CGI Tools/Libraries',
         'Topic :: Internet :: WWW/HTTP :: Site Management',
diff --git a/tox.ini b/tox.ini
index 7a415bf..42cdd50 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27, py32, py33, py34, py35, py36, pypy, flake8, checkspelling
+envlist = py27, py34, py35, py36, py37, pypy, pypy3, flake8, checkspelling
 
 [testenv]
 deps = -rtest-requirements.txt
-- 
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