diff --git a/setup/install.py b/setup/install.py
index 3d82cb3183..540de730e6 100644
--- a/setup/install.py
+++ b/setup/install.py
@@ -6,7 +6,7 @@ __license__   = 'GPL v3'
 __copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
-import sys, os, textwrap
+import sys, os, textwrap, subprocess
 
 from setup import Command, islinux, basenames, modules, functions
 
@@ -33,7 +33,7 @@ class Develop(Command):
     description = 'Setup a development environment'
     MODE = 0755
 
-    sub_commands = ['build']
+    sub_commands = ['build', 'translations']
 
     def add_options(self, parser):
         parser.set_usage(textwrap.dedent('''\
@@ -64,8 +64,12 @@ class Develop(Command):
         self.regain_privileges()
         self.find_locations(opts)
         self.write_templates(opts)
+        self.run_postinstall()
         self.success()
 
+    def run_postinstall(self):
+        subprocess.check_call(['calibre_postinstall'])
+
     def success(self):
         self.info('\nDevelopment environment successfully setup')
 
diff --git a/setup/translations.py b/setup/translations.py
index eb70a5812b..5ba84c4a5e 100644
--- a/setup/translations.py
+++ b/setup/translations.py
@@ -76,7 +76,8 @@ class Translations(POT):
                     self.info('\tCopying ISO 639 translations')
                     shutil.copy2(iso639, dest)
             else:
-                self.warn('No ISO 639 translations for locale:', locale)
+                self.warn('No ISO 639 translations for locale:', locale,
+                '\nDo you have pycountry installed?')
 
         base = os.path.join(pyqt.qt_data_dir, 'translations')
         qt_translations = glob.glob(os.path.join(base, 'qt_*.qm'))
diff --git a/src/calibre/gui2/__init__.py b/src/calibre/gui2/__init__.py
index a9f8e3d9f1..bda0a7ffb8 100644
--- a/src/calibre/gui2/__init__.py
+++ b/src/calibre/gui2/__init__.py
@@ -532,6 +532,7 @@ class ResizableDialog(QDialog):
 
 gui_thread = None
 
+
 class Application(QApplication):
 
     def __init__(self, args):
@@ -539,10 +540,9 @@ class Application(QApplication):
         QApplication.__init__(self, qargs)
         global gui_thread
         gui_thread = QThread.currentThread()
-        self.translator = QTranslator(self)
-        if set_qt_translator(self.translator):
-            print 1111111
-            self.installTranslator(self.translator)
+        self._translator = QTranslator(self)
+        if set_qt_translator(self._translator):
+            self.installTranslator(self._translator)
 
 def is_ok_to_use_qt():
     global gui_thread
diff --git a/src/calibre/gui2/main.py b/src/calibre/gui2/main.py
index 5667a3ca9b..d023851f15 100644
--- a/src/calibre/gui2/main.py
+++ b/src/calibre/gui2/main.py
@@ -1821,12 +1821,12 @@ def init_qt(args):
     opts, args = parser.parse_args(args)
     if opts.with_library is not None and os.path.isdir(opts.with_library):
         prefs.set('library_path', os.path.abspath(opts.with_library))
-        print 'Using library at', prefs['library_path']
+        prints('Using library at', prefs['library_path'])
+    QCoreApplication.setOrganizationName(ORG_NAME)
+    QCoreApplication.setApplicationName(APP_UID)
     app = Application(args)
     actions = tuple(Main.create_application_menubar())
     app.setWindowIcon(QIcon(':/library'))
-    QCoreApplication.setOrganizationName(ORG_NAME)
-    QCoreApplication.setApplicationName(APP_UID)
     return app, opts, args, actions
 
 def run_gui(opts, args, actions, listener, app):
diff --git a/src/calibre/utils/localization.py b/src/calibre/utils/localization.py
index e307af332f..cd3b1c75ef 100644
--- a/src/calibre/utils/localization.py
+++ b/src/calibre/utils/localization.py
@@ -115,6 +115,6 @@ def set_qt_translator(translator):
         for x in (lang, lang.split('_')[0]):
             p = os.path.join(messages_path(x), 'qt.qm')
             if os.path.exists(p):
-                return translator.loadFromData(open(p, 'rb').read())
+                return translator.load(p)
     return False