Issue #29335: Fix subprocess.Popen.wait() when the child process has

exited to a stopped instead of terminated state (ex: when under ptrace).

1 files changed, 4 insertions, 1 deletions

diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index c4f84d8e8a..67b9c9f1b1 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -1326,7 +1326,8 @@ class Popen(object):
 
         def _handle_exitstatus(self, sts, _WIFSIGNALED=os.WIFSIGNALED,
                 _WTERMSIG=os.WTERMSIG, _WIFEXITED=os.WIFEXITED,
-                _WEXITSTATUS=os.WEXITSTATUS):
+                _WEXITSTATUS=os.WEXITSTATUS, _WIFSTOPPED=os.WIFSTOPPED,
+                _WSTOPSIG=os.WSTOPSIG):
             """All callers to this function MUST hold self._waitpid_lock."""
             # This method is called (indirectly) by __del__, so it cannot
             # refer to anything outside of its local scope.
@@ -1334,6 +1335,8 @@ class Popen(object):
                 self.returncode = -_WTERMSIG(sts)
             elif _WIFEXITED(sts):
                 self.returncode = _WEXITSTATUS(sts)
+            elif _WIFSTOPPED(sts):
+                self.returncode = -_WSTOPSIG(sts)
             else:
                 # Should never happen
                 raise SubprocessError("Unknown child exit status!")