This was only added in Python 3.6 and not all the build hosts have that recent a python3. However we still need to ensure everything is returns as a unicode string so checks higher up the call chain don't barf.
Signed-off-by: Alex Bennée <alex.ben...@linaro.org> fixup! tests/docker: handle missing encoding keyword for subprocess.check_output diff --git a/tests/docker/docker.py b/tests/docker/docker.py index 1620293ac84..417b0cdce13 100755 --- a/tests/docker/docker.py +++ b/tests/docker/docker.py @@ -258,10 +258,16 @@ class Docker(object): return self._do_kill_instances(True) def _output(self, cmd, **kwargs): - return subprocess.check_output(self._command + cmd, - stderr=subprocess.STDOUT, - encoding='utf-8', - **kwargs) + if sys.version_info[1] >= 6: + return subprocess.check_output(self._command + cmd, + stderr=subprocess.STDOUT, + encoding='utf-8', + **kwargs) + else: + return subprocess.check_output(self._command + cmd, + stderr=subprocess.STDOUT, + **kwargs).decode('utf-8') + def inspect_tag(self, tag): try: -- 2.20.1