Fix setup.py and update version to 1.7.1

Author: xmikos

PKGBUILD

@@ -1,6 +1,6 @@
 # Maintainer: Michal Krenek (Mikos) <m.krenek@gmail.com>
 pkgname=hangupsbot
-pkgver=1.7.0
+pkgver=1.7.1
 pkgrel=1
 pkgdesc="Bot for Google Hangouts"
 arch=('any')

hangupsbot/version.py

@@ -1 +1 @@
-__version__ = "1.7.0"
+__version__ = "1.7.1"

setup.py

@@ -1,8 +1,18 @@
 #!/usr/bin/env python
 
+import sys
+
 from setuptools import setup
 from hangupsbot.version import __version__
 
+install_requires=[
+    "hangups>=0.3.0",
+    "appdirs"
+]
+
+if sys.version_info < (3, 4):
+    install_requires.append("asyncio")
+
 setup(
     name="HangupsBot",
     version=__version__,
@@ -24,11 +34,7 @@
             "hangupsbot=hangupsbot.__main__:main"
         ],
     },
-    install_requires=[
-        "hangups>=0.3.0",
-        "appdirs",
-        "asyncio"  # Only needed for backward compatibility with Python 3.3
-    ],
+    install_requires=install_requires,
     classifiers=[
         "Development Status :: 4 - Beta",
         "Intended Audience :: Developers",