set data_files only when install is invoked

setup.py

@@ -15,6 +15,12 @@ util = imp.load_source('util', 'lib/util.py')
 if sys.version_info[:3] < (2, 7, 0):
     sys.exit("Error: Electrum requires Python version >= 2.7.0...")
 
+
+
+if (len(sys.argv) > 1) and (sys.argv[1] == "install"): 
+    # or (platform.system() != 'Windows' and platform.system() != 'Darwin'):
+    print "Including all files"
+    data_files = []
     usr_share = util.usr_share_dir()
     if not os.access(usr_share, os.W_OK):
         try:
@@ -22,9 +28,6 @@ if not os.access(usr_share, os.W_OK):
         except:
             sys.exit("Error: cannot write to %s.\nIf you do not have root permissions, you may install Electrum in a virtualenv.\nAlso, please note that you can run Electrum without installing it on your system."%usr_share)
 
-data_files = []
-if (len(sys.argv) > 1 and (sys.argv[1] == "sdist")) or (platform.system() != 'Windows' and platform.system() != 'Darwin'):
-    print "Including all files"
     data_files += [
         (os.path.join(usr_share, 'applications/'), ['electrum.desktop']),
         (os.path.join(usr_share, 'app-install', 'icons/'), ['icons/electrum.png'])
@@ -35,8 +38,8 @@ if (len(sys.argv) > 1 and (sys.argv[1] == "sdist")) or (platform.system() != 'Wi
         if os.path.exists('locale/%s/LC_MESSAGES/electrum.mo' % lang):
             data_files.append((os.path.join(usr_share, 'locale/%s/LC_MESSAGES' % lang), ['locale/%s/LC_MESSAGES/electrum.mo' % lang]))
 
-appdata_dir = os.path.join(usr_share, "electrum")
 
+    appdata_dir = os.path.join(usr_share, "electrum")
     data_files += [
         (appdata_dir, ["data/README"]),
         (os.path.join(appdata_dir, "cleanlook"), [
@@ -55,7 +58,8 @@ data_files += [
 
     for lang in os.listdir('data/wordlist'):
         data_files.append((os.path.join(appdata_dir, 'wordlist'), ['data/wordlist/%s' % lang]))
-
+else:
+    data_files = []
 
 setup(
     name="Electrum",