Merge pull request #93 from gcarq/feature/interpreter-version-check

add interpreter version check

setup.py

@@ -1,5 +1,11 @@
+from sys import version_info
 from setuptools import setup
 
+if version_info.major == 3 and version_info.minor < 6 or \
+        version_info.major < 3:
+    print('Your Python interpreter must be 3.6 or greater!')
+    exit(1)
+
 from freqtrade import __version__