Fail as early as possible when using an incompatible Python version

downloader.py

@@ -26,6 +26,10 @@ import string
 import sys
 
 
+if sys.version_info < (2, 5):
+    print 'This program requires Python 2.5 or newer.'
+    sys.exit(1)
+
 if sys.version_info >= (2, 7):
     # suppresses default logger.  Logging is setup in fanficdownload/__init__.py so it works in calibre, too.
     rootlogger = logging.getLogger()
@@ -33,7 +37,6 @@ if sys.version_info >= (2, 7):
     loghandler.setFormatter(logging.Formatter('(=====)(levelname)s:%(message)s'))
     rootlogger.addHandler(loghandler)
 
-
 try:
     # running under calibre
     from calibre_plugins.fanfictiondownloader_plugin.fanficdownloader import adapters, writers, exceptions
@@ -47,11 +50,6 @@ except ImportError:
     from fanficdownloader.geturls import get_urls_from_page
 
 
-if sys.version_info < (2, 5):
-    print 'This program requires Python 2.5 or newer.'
-    sys.exit(1)
-
-
 def write_story(config, adapter, writeformat, metaonly=False, outstream=None):
     writer = writers.getWriter(writeformat, config, adapter)
     writer.writeStory(outstream=outstream, metaonly=metaonly)