11419: Read JSON files in binary mode.

Files opened in text mode do not have a size() method.

refs #11419

Arvados-DCO-1.1-Signed-off-by: Tom Clegg <tclegg@veritasgenetics.com>

diff --git a/sdk/cwl/arvados_cwl/runner.py b/sdk/cwl/arvados_cwl/runner.py
index 1d5f98f200c16bb444878da3b418f01b57bf1002..4b3275fa36b4ee497ec83c3de2b3e8a0c938fb62 100644 (file)
--- a/sdk/cwl/arvados_cwl/runner.py
+++ b/sdk/cwl/arvados_cwl/runner.py
@@ -461,7 +461,7 @@ class Runner(Process):
                                                        keep_client=self.arvrunner.keep_client,
                                                        num_retries=self.arvrunner.num_retries)
             if "cwl.output.json" in outc:
-                with outc.open("cwl.output.json") as f:
+                with outc.open("cwl.output.json", "rb") as f:
                     if f.size() > 0:
                         outputs = json.load(f)
             def keepify(fileobj):