fixed enum34 dependency for py versions > 3.4 (via #177)

Author: Volodymyr

allure-python-commons/setup.py

@@ -1,4 +1,3 @@
-import sys
 from setuptools import setup
 
 PACKAGE = "allure-python-commons"
@@ -15,12 +14,10 @@
 install_requires = [
     "attrs>=16.0.0",
     "six>=1.9.0",
-    "pluggy>=0.4.0"
+    "pluggy>=0.4.0",
+    "enum34;python_version<'3.4'",
 ]
 
-if sys.version_info < (3, 4):
-    install_requires.append("enum34")
-
 
 def main():
     setup(
@@ -39,5 +36,6 @@ def main():
         py_modules=['allure', 'allure_commons']
     )
 
+
 if __name__ == '__main__':
     main()