Issue #19612: On Windows, subprocess.Popen.communicate() now ignores
OSError(22, 'Invalid argument') when writing input data into stdin, whereas
the process already exited.
diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index d75a4e0..86592a1 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -1193,7 +1193,15 @@
try:
self.stdin.write(input)
except IOError as e:
- if e.errno != errno.EPIPE:
+ if e.errno == errno.EPIPE:
+ # ignore pipe full error
+ pass
+ elif (e.errno == errno.EINVAL
+ and self.poll() is not None):
+ # Issue #19612: stdin.write() fails with EINVAL
+ # if the process already exited before the write
+ pass
+ else:
raise
self.stdin.close()