X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/0dffc025de9ebc7a54596e1018a589a6f5b8a03e..da85b5f1617656e03535dc490f027d7fae4d702e:/sdk/python/arvados/util.py

diff --git a/sdk/python/arvados/util.py b/sdk/python/arvados/util.py
index e063f12de9..d5ea18ba49 100644
--- a/sdk/python/arvados/util.py
+++ b/sdk/python/arvados/util.py
@@ -30,7 +30,10 @@ def run_command(execargs, **kwargs):
     kwargs.setdefault('close_fds', True)
     kwargs.setdefault('shell', False)
     p = subprocess.Popen(execargs, **kwargs)
-    stdoutdata, stderrdata = p.communicate(None)
+    if kwargs['stdout'] == subprocess.PIPE:
+        stdoutdata, stderrdata = p.communicate(None)
+    else:
+        p.wait()
     if p.returncode != 0:
         raise errors.CommandFailedError(
             "run_command %s exit %d:\n%s" %
@@ -162,7 +165,7 @@ def zipball_extract(zipball, path):
                     break
                 zip_file.write(buf)
             zip_file.close()
-            
+
             p = subprocess.Popen(["unzip",
                                   "-q", "-o",
                                   "-d", path,