scripts/buildenv-internal/sanity: Update to python 2.7.3 as a minimum

index 3c70a7b..744e30d 100644
@@ -382,11 +382,10 @@ def check_sanity(sanity_data):
 
     messages = ""
 
-    # Check the Python version, we now use Python 2.6 features in
-    # various classes
+    # Check the Python version, we now have a minimum of Python 2.7.3
     import sys
-    if sys.hexversion < 0x020600F0:
-        messages = messages + 'The system requires at least Python 2.6 to run. Please update your Python interpreter.\n'
+    if sys.hexversion < 0x020703F0:
+        messages = messages + 'The system requires at least Python 2.7.3 to run. Please update your Python interpreter.\n'
     # Check the python install is complete. glib-2.0-natives requries
     # xml.parsers.expat
     try:

index a33698c..40d95b7 100755
@@ -43,9 +43,9 @@ fi
 # Similarly, we now have code that doesn't parse correctly with older
 # versions of Python, and rather than fixing that and being eternally
 # vigilant for any other new feature use, just check the version here.
-py_v26_check=`python -c 'import sys; print sys.version_info >= (2,6,0)'`
+py_v26_check=`python -c 'import sys; print sys.version_info >= (2,7,3)'`
 if [ "$py_v26_check" != "True" ]; then
-	echo "BitBake requires Python 2.6 or later"
+	echo "BitBake requires Python 2.7.3 or later"
 	exit 1
 fi