fix and demo cpuonline

Signed-off-by: Mattias Andrée <maandree@operamail.com>

2 files changed, 4 insertions, 2 deletions

diff --git a/src/plugins/cpuonline.py b/src/plugins/cpuonline.py
index 75e8bed..8b42f66 100644
--- a/src/plugins/cpuonline.py
+++ b/src/plugins/cpuonline.py
@@ -45,8 +45,10 @@ class CPUOnline:
         for filename in ('offline', 'online', 'possible', 'present'):
             with open('/sys/devices/system/cpu/online', 'rb') as file:
                 data.append(file.read())
+        
         data = [x.decode('utf-8', 'replace').replace('\n', ' ').replace(',', ' ') for x in data]
-        data = [reduce(lambda x, y : x + y, map(expand, x.split(' '))) for x in data]
+        data = [map(expand, filter(lambda item : not item == '', x.split(' '))) for x in data]
+        data = [reduce(lambda x, y : x + y, list(x)) for x in data]
         
         (self.offline, self.online, self.possible, self.present) = data
 
diff --git a/src/util.py b/src/util.py
index 9c8c9d5..d42515b 100644
--- a/src/util.py
+++ b/src/util.py
@@ -98,7 +98,7 @@ def reduce(f, items):
     @return  ¿E?               The output
     '''
     if len(items) < 2:
-        return items
+        return [] if len(items) == 0 else items[0]
     rc = items[0]
     for i in range(1, len(items)):
         rc = f(rc, items[i])