fixup! Add support for Python 3

/reviewed-on !63

slapos/promise/check_computer_memory/__init__.py

@@ -7,7 +7,7 @@ Uses:
 - /proc/meminfo
 """
 
-from __future__ import print_function
+from __future__ import division, print_function
 
 import sys
 import sqlite3
@@ -41,8 +41,8 @@ def getMemoryInfo(database, time, date):
   finally:
     database.close()
 
-  memory_info["used_percent"] = memory_info["used"] * 100.0 / memory_info["total"]
-  memory_info["free_percent"] = memory_info["free"] * 100.0 / memory_info["total"]
+  memory_info["used_percent"] = memory_info["used"] * 100 / memory_info["total"]
+  memory_info["free_percent"] = memory_info["free"] * 100 / memory_info["total"]
   return (memory_info, "")
 
 def checkMemoryUsage(database_path, time, date, threshold, key="used", unit="byte"):

slapos/promise/plugin/check_free_disk_space.py

+from __future__ import division
+
 from zope.interface import implementer
 from slapos.grid.promise import interface
 from slapos.grid.promise.generic import GenericPromise
@@ -81,14 +83,14 @@ class RunPromise(GenericPromise):
     usage_output = ""
     total_inode = stat.f_files
     free_inode = stat.f_ffree
-    usage = round((float(total_inode - free_inode) / total_inode), 4) * 100
+    usage = round(((total_inode - free_inode) / total_inode), 4) * 100
     if usage > max_inode_usage:
       return "Disk Inodes usages is really high: %s%%" % usage
     elif os.path.exists('/tmp'):
       # check if /tmp is mounted on another disk than path
       tmp_stat = os.statvfs('/tmp')
       if tmp_stat.f_blocks != stat.f_blocks:
-        tmp_usage = round((float(tmp_stat.f_files - tmp_stat.f_ffree) / tmp_stat.f_files), 4) * 100
+        tmp_usage = round(((tmp_stat.f_files - tmp_stat.f_ffree) / tmp_stat.f_files), 4) * 100
         if tmp_usage > max_inode_usage:
           return "Disk Inodes usage is high: %s%%" % tmp_usage
     return ""
@@ -160,8 +162,8 @@ class RunPromise(GenericPromise):
         self.logger.info("Disk usage: OK")
       return
 
-    free_space = round(free_space/(1024.0*1024*1024), 2)
-    min_space = round(min_free_size/(1024.0*1024*1024), 2)
+    free_space = round(free_space/(1024*1024*1024), 2)
+    min_space = round(min_free_size/(1024*1024*1024), 2)
     self.logger.error('Free disk space low: remaining %s G (threshold: %s G)' % (
       free_space, min_space))
 

slapos/promise/plugin/trafficserver_cache_availability.py

@@ -30,11 +30,7 @@ class RunPromise(GenericPromise):
       return
 
     try:
-      subprocess.subprocess.check_output(
-        args,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.STDOUT,
-      )
+      subprocess.check_output(args, stderr=subprocess.STDOUT)
     except subprocess.CalledProcessError as e:
       result = e.output.strip()
       self.logger.error(message, result if str is bytes else

slapos/qemuqmpclient/__init__.py

@@ -540,7 +540,7 @@ class QemuQMPWrapper(object):
         memory_id_list.append({
         'memdev': mem_dev,
          'id': dimm['data']['id'],
-         'size': dimm['data']['size']/(1024 * 1024),
+         'size': dimm['data']['size']//(1024 * 1024),
        })
     memory_id_list = sorted(memory_id_list, key=itemgetter('id'))
 
@@ -558,7 +558,7 @@ class QemuQMPWrapper(object):
     if (mem_size % slot_size) != 0:
       raise ValueError("Memory size %r is not a multiple of %r" % (mem_size,
         slot_size))
-    if (mem_size / slot_size) > slot_amount:
+    if (mem_size // slot_size) > slot_amount:
       raise ValueError("No enough slots available to add %sMB of RAM" % mem_size)
 
     current_size //= (1024 * 1024)
@@ -616,7 +616,7 @@ class QemuQMPWrapper(object):
     final_mem_size = 0
     for mem in mem_info['hotplugged']:
       final_mem_size += mem['size']
-    final_mem_size = final_mem_size / (1024 * 1024) # get size in MB
+    final_mem_size //= (1024 * 1024) # get size in MB
     if mem_size != final_mem_size:
       raise ValueError("Consistency error: Expected %s MB of hotplugged RAM " \
         "but current RAM size is %s MB" % (mem_size, final_mem_size))