From 72acd6f9471f8a1c3a79b0e3785f77e84ac6244d Mon Sep 17 00:00:00 2001
From: Mark Peek <mark@peek.org>
Date: Fri, 1 Jul 2016 09:03:18 -0700
Subject: [PATCH] Report E302 for blank lines before an "async def"

---
 pycodestyle.py   | 4 +++-
 testsuite/E30.py | 6 ++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/pycodestyle.py b/pycodestyle.py
index a5f55346..3ee688bd 100755
--- a/pycodestyle.py
+++ b/pycodestyle.py
@@ -250,10 +250,12 @@ def blank_lines(logical_line, blank_lines, indent_level, line_number,
     Use blank lines in functions, sparingly, to indicate logical sections.
 
     Okay: def a():\n    pass\n\n\ndef b():\n    pass
+    Okay: def a():\n    pass\n\n\nasync def b():\n    pass
     Okay: def a():\n    pass\n\n\n# Foo\n# Bar\n\ndef b():\n    pass
 
     E301: class Foo:\n    b = 0\n    def bar():\n        pass
     E302: def a():\n    pass\n\ndef b(n):\n    pass
+    E302: def a():\n    pass\n\nasync def b(n):\n    pass
     E303: def a():\n    pass\n\n\n\ndef b(n):\n    pass
     E303: def a():\n\n\n\n    pass
     E304: @decorator\n\ndef a():\n    pass
@@ -266,7 +268,7 @@ def blank_lines(logical_line, blank_lines, indent_level, line_number,
             yield 0, "E304 blank lines found after function decorator"
     elif blank_lines > 2 or (indent_level and blank_lines == 2):
         yield 0, "E303 too many blank lines (%d)" % blank_lines
-    elif logical_line.startswith(('def ', 'class ', '@')):
+    elif logical_line.startswith(('def ', 'async def', 'class ', '@')):
         if indent_level:
             if not (blank_before or previous_indent_level < indent_level or
                     DOCSTRING_REGEX.match(previous_logical)):
diff --git a/testsuite/E30.py b/testsuite/E30.py
index 1471079e..9397541b 100644
--- a/testsuite/E30.py
+++ b/testsuite/E30.py
@@ -44,7 +44,13 @@ def a():
 def b():
     pass
 #:
+#: E302:4:1
+def a():
+    pass
 
+async def b():
+    pass
+#:
 
 #: E303:5:1
 print