Add argparse to dependencies for python 2.6

Close #240

@sixohsix I'll let you update the version number and figure out
whether to pass to version 1.15 or 1.14.4

diff --git a/setup.py b/setup.py
index 973dd004c1787cfcc0ee2293b203c24b85cd0a24..2a02495ab1489a2825c40aa6300fc979b5656e2a 100644 (file)
--- a/setup.py
+++ b/setup.py
@@ -6,6 +6,8 @@ version = '1.14.3'
 install_requires = [
     # -*- Extra requirements: -*-
     ]
+if sys.version_info < (2,7):
+    install_requires.append('argparse')
 
 setup(name='twitter',
       version=version,