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-rw-r--r--cloudinit/util.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/cloudinit/util.py b/cloudinit/util.py
index 338fb971..5a919cfe 100644
--- a/cloudinit/util.py
+++ b/cloudinit/util.py
@@ -1865,8 +1865,13 @@ def subp(args, data=None, rcs=None, env=None, capture=True, shell=False,
if not isinstance(data, bytes):
data = data.encode()
+ # Popen converts entries in the arguments array from non-bytes to bytes.
+ # When locale is unset it may use ascii for that encoding which can
+ # cause UnicodeDecodeErrors. (LP: #1751051)
+ bytes_args = [x if isinstance(x, six.binary_type) else x.encode("utf-8")
+ for x in args]
try:
- sp = subprocess.Popen(args, stdout=stdout,
+ sp = subprocess.Popen(bytes_args, stdout=stdout,
stderr=stderr, stdin=stdin,
env=env, shell=shell)
(out, err) = sp.communicate(data)