worker: give a text file to yaml.safe_dump for py3

Signed-off-by: Kyr Shatskyy <kyrylo.shatskyy@suse.com>

diff --git a/teuthology/worker.py b/teuthology/worker.py
index 59f094320afd3c3d989b59cc2876504599ce4023..9ea48e2c9129b16a0a02fb38d56f904102e0651e 100644 (file)
--- a/teuthology/worker.py
+++ b/teuthology/worker.py
@@ -254,7 +254,7 @@ def run_job(job_config, teuth_bin_path, archive_dir, verbose):
     arg.append('--')
 
     with tempfile.NamedTemporaryFile(prefix='teuthology-worker.',
-                                     suffix='.tmp',) as tmp:
+                                     suffix='.tmp', mode='w+t') as tmp:
         yaml.safe_dump(data=job_config, stream=tmp)
         tmp.flush()
         arg.append(tmp.name)