diff --git a/pisi/actionsapi/get.py b/pisi/actionsapi/get.py
index 340beb9d..1ca89336 100644
--- a/pisi/actionsapi/get.py
+++ b/pisi/actionsapi/get.py
@@ -41,8 +41,7 @@ def curDIR():
 
 def curKERNEL():
     '''returns currently running kernel's version'''
-    versionString = file("/proc/version").readline()
-    return versionString.split()[2]
+    return os.uname[2]
 
 def curPYTHON():
     ''' returns currently used python's version'''
@@ -82,10 +81,10 @@ def srcRELEASE():
     return env.src_release
 
 def srcTAG():
-    return "%s-%s-%s" % (env.src_name, env.src_version, env.src_release)
+    return '%s-%s-%s' % (env.src_name, env.src_version, env.src_release)
 
 def srcDIR():
-    return "%s-%s" % (env.src_name, env.src_version)
+    return '%s-%s' % (env.src_name, env.src_version)
 
 # Build Related Functions
         
diff --git a/pisi/actionsapi/scons.py b/pisi/actionsapi/scons.py
index e592bb8c..c64305d5 100644
--- a/pisi/actionsapi/scons.py
+++ b/pisi/actionsapi/scons.py
@@ -36,9 +36,9 @@ class InstallError(pisi.actionsapi.Error):
         ctx.ui.error(value)
 
 def make(parameters = ''):
-    if system("scons %s" % parameters):
+    if system('scons %s' % parameters):
         raise MakeError(_('Make failed.'))
 
 def install(parameters = 'install', prefix = get.installDIR()):
-    if system("scons prefix=%s %s" % (prefix, parameters)):
+    if system('scons prefix=%s %s' % (prefix, parameters)):
         raise InstallError(_('Install failed.'))
diff --git a/pisi/actionsapi/shelltools.py b/pisi/actionsapi/shelltools.py
index 12fb2aab..7e54f381 100644
--- a/pisi/actionsapi/shelltools.py
+++ b/pisi/actionsapi/shelltools.py
@@ -52,7 +52,7 @@ def makedirs(destinationDirectory):
 def echo(destionationFile, content):
     try:
         f = open(destionationFile, 'a')
-        f.write("%s\n" % content)
+        f.write('%s\n' % content)
         f.close()
     except IOError:
         error(_('ActionsAPI [echo]: Can\'t append to file %s.') % (destionationFile))