tee: convert to python3 only
All users of these modules are python3 only already.
BUG=chromium:997354
TEST=`./run_tests` passes
Change-Id: Icebc5b379286775651f83ad2cac286a9ee1b4556
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2649614
Tested-by: Mike Frysinger <vapier@chromium.org>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Michael Mortensen <mmortensen@google.com>
Reviewed-by: Michael Mortensen <mmortensen@google.com>
diff --git a/lib/tee.py b/lib/tee.py
index 0cbc943..2760c1d 100644
--- a/lib/tee.py
+++ b/lib/tee.py
@@ -20,6 +20,10 @@
from chromite.lib import cros_build_lib
from chromite.lib import cros_logging as logging
+
+assert sys.version_info >= (3, 6), 'This module requires Python 3.6+'
+
+
warnings.warn('lib/tee.py is deprecated', DeprecationWarning)
# Max amount of data we're hold in the buffer at a given time.
