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Fix WinError 87 not handled in convert_oserror() (#2519) #2970

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Fix WinError 87 not handled in convert_oserror() (#2519) #2970

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7 changes: 7 additions & 0 deletions psutil/_pswindows.py
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Original file line number Diff line number Diff line change
Expand Up @@ -588,6 +588,13 @@ def convert_oserror(exc, pid=None, name=None):
return AccessDenied(pid=pid, name=name)
if isinstance(exc, ProcessLookupError):
return NoSuchProcess(pid=pid, name=name)
if getattr(exc, "winerror", None) == 87:
# os.kill(pid, CTRL_C_EVENT / CTRL_BREAK_EVENT) can raise this
# (WinError 87, "the parameter is incorrect") when the process
# terminates on its own right before the signal is sent.
# See: https://github.com/giampaolo/psutil/issues/2519
msg = f"process {pid} disappeared before the signal could be sent"
return NoSuchProcess(pid=pid, name=name, msg=msg)
raise exc


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