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-rw-r--r--Lib/subprocess.py7
1 files changed, 5 insertions, 2 deletions
diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index 0942d94ef7..e7f39fef06 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -1562,6 +1562,9 @@ class Popen(object):
self._save_input(input)
+ if self._input:
+ input_view = memoryview(self._input)
+
with _PopenSelector() as selector:
if self.stdin and input:
selector.register(self.stdin, selectors.EVENT_WRITE)
@@ -1583,8 +1586,8 @@ class Popen(object):
for key, events in ready:
if key.fileobj is self.stdin:
- chunk = self._input[self._input_offset :
- self._input_offset + _PIPE_BUF]
+ chunk = input_view[self._input_offset :
+ self._input_offset + _PIPE_BUF]
try:
self._input_offset += os.write(key.fd, chunk)
except OSError as e: