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[Linux] Properly raise ZombieProcess in exe() method #2062

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[Linux] Properly raise ZombieProcess in exe() method #2062

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16 changes: 8 additions & 8 deletions psutil/_pslinux.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1741,16 +1741,16 @@ def exe(self):
try:
return readlink("%s/%s/exe" % (self._procfs_path, self.pid))
except (FileNotFoundError, ProcessLookupError):
# no such file error; might be raised also if the
# path actually exists for system processes with
# low pids (about 0-20)
if os.path.lexists("%s/%s" % (self._procfs_path, self.pid)):
return ""
if not pid_exists(self.pid):
raise NoSuchProcess(self.pid, self._name)
else:
if not pid_exists(self.pid):
raise NoSuchProcess(self.pid, self._name)
else:
# its /proc/pid directory exists, but the /exe file does not.
# it's either a zombie
if self.status() == "zombie":
raise ZombieProcess(self.pid, self._name, self._ppid)
else:
# or a kernel thread, for whom we return an empty string.
return ""
except PermissionError:
raise AccessDenied(self.pid, self._name)

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