Print a more helpful error if the Python version is too old

For Python 3.2 support, virtme would need to adjust how it uses
os.uname() and it would need a replacement for shutil.which().
The latter is annoying enough that I don't really want to do it.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>

3 files changed, 12 insertions, 2 deletions

diff --git a/setup.py b/setup.py
index cb58534..b69e9d4 100755
--- a/setup.py
+++ b/setup.py
@@ -8,8 +8,8 @@ try:
 except ImportError:
     from distutils.core import setup
 
-if sys.version_info.major < 3:
-    print('virtme requires Python 3 or higher')
+if sys.version_info < (3,3):
+    print('virtme requires Python 3.3 or higher')
     sys.exit(1)
 
 _VERSION = '0.0.1'
diff --git a/virtme-configkernel b/virtme-configkernel
index 9e94b5b..cdeb06b 100755
--- a/virtme-configkernel
+++ b/virtme-configkernel
@@ -9,5 +9,10 @@
 # This file is not installed; it's just used to run virtme from inside
 # a source distribution.
 
+import sys
+if sys.version_info < (3,3):
+    print('virtme requires Python 3.3 or higher')
+    sys.exit(1)
+
 from virtme.commands import configkernel
 exit(configkernel.main())
diff --git a/virtme-run b/virtme-run
index f9457db..d472f81 100755
--- a/virtme-run
+++ b/virtme-run
@@ -9,5 +9,10 @@
 # This file is not installed; it's just use to run virtme from inside
 # a source distribution.
 
+import sys
+if sys.version_info < (3,3):
+    print('virtme requires Python 3.3 or higher')
+    sys.exit(1)
+
 from virtme.commands import run
 exit(run.main())