From 06a5e19769ef14f9c9c8a9785722af73a0cd9103 Mon Sep 17 00:00:00 2001
From: Carl Meyer <carl@oddbird.net>
Date: Thu, 3 Aug 2017 10:22:45 -0700
Subject: [PATCH] Handle argv being None.

---
 src/flake8/main/application.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/flake8/main/application.py b/src/flake8/main/application.py
index f1052b9..af54309 100644
--- a/src/flake8/main/application.py
+++ b/src/flake8/main/application.py
@@ -2,6 +2,7 @@
 from __future__ import print_function
 
 import logging
+import sys
 import time
 
 import flake8
@@ -115,7 +116,7 @@ class Application(object):
         # do not need to worry and we can continue. If it is, we successfully
         # defer printing the version until just a little bit later.
         # Similarly we have to defer printing the help text until later.
-        args = argv[:]
+        args = (argv or sys.argv)[:]
         try:
             args.remove('--version')
         except ValueError: