Unconditionally use statistics module since we support Python 3.4+ now

glances/compat.py

@@ -31,16 +31,10 @@ from glances.logger import logger
 
 PY3 = sys.version_info[0] == 3
 
-try:
-    from statistics import mean
-except ImportError:
-    # Statistics is only available for Python 3.4 or higher
-    def mean(numbers):
-        return float(sum(numbers)) / max(len(numbers), 1)
-
 if PY3:
     import queue
     from configparser import ConfigParser, NoOptionError, NoSectionError
+    from statistics import mean
     from xmlrpc.client import Fault, ProtocolError, ServerProxy, Transport, Server
     from xmlrpc.server import SimpleXMLRPCRequestHandler, SimpleXMLRPCServer
     from urllib.request import urlopen
@@ -130,6 +124,9 @@ else:
     viewvalues = operator.methodcaller('viewvalues')
     viewitems = operator.methodcaller('viewitems')
 
+    def mean(numbers):
+        return float(sum(numbers)) / max(len(numbers), 1)
+
     def to_ascii(s):
         """Convert the unicode 's' to a ASCII string
         Usefull to remove accent (diacritics)"""