build_requests: convert to python3 only
All users of these modules are python3 only already.
BUG=chromium:997354
TEST=`./run_tests` passes
Change-Id: Ic4fff4c4aacc8b609b97136328d98ce17a76f1aa
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2658801
Tested-by: Mike Frysinger <vapier@chromium.org>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Alex Klein <saklein@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
diff --git a/lib/build_requests.py b/lib/build_requests.py
index 7585f6d..acf5469 100644
--- a/lib/build_requests.py
+++ b/lib/build_requests.py
@@ -8,6 +8,10 @@
from __future__ import print_function
import collections
+import sys
+
+
+assert sys.version_info >= (3, 6), 'This module requires Python 3.6+'
REASON_IMPORTANT_CQ_SLAVE = 'important_cq_slave'
