[telepathy-butterfly/master] Check python version at start-up

[Olivier Le Thanh Duong]

---
 telepathy-butterfly |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/telepathy-butterfly b/telepathy-butterfly
index ee25436..32dc3a3 100755
--- a/telepathy-butterfly
+++ b/telepathy-butterfly
@@ -25,6 +25,10 @@ import os
 import sys
 import logging
 
+if sys.version_info < (2, 5):
+    print >> sys.stderr, 'Critical: python >= 2.5 required. Exiting.'
+    sys.exit(1)
+
 import telepathy
 if telepathy.version < (0, 15, 9):
     print >> sys.stderr, 'Critical: telepathy-python >= 0.15.9 required. Exiting.'
-- 
1.5.6.5