[issue18930] os.spawnXX functions terminates process if second argument is empty list

[Stefan Schukat]

Stefan Schukat  added the comment:

@Batuhan the error does not appear anymore in at least Python 3.6.1
>>> import os
>>> nPath = os.path.join(os.environ["windir"], "notepad.exe")
>>> os.spawnv(os.P_NOWAIT, nPath, []) # or os.spawnv(os.P_NOWAIT, nPath, [], {})
Traceback (most recent call last):
  File "", line 1, in 
ValueError: spawnv() arg 2 cannot be empty

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[issue18930] os.spawnXX functions terminates process if second argument is empty list

[Stefan Schukat]

New submission from Stefan Schukat:

If os.spawnv or os.spawnve  is called with an empty second argument the process 
terminates in release builds under Windows. This is simple to reproduce:

>>> import os
>>> nPath = os.path.join(os.environ["windir"], "notepad.exe")
>>> os.spawnv(os.P_NOWAIT, nPath, []) # or os.spawnv(os.P_NOWAIT, nPath, [], {})

This has the same cause as the bug reported for execv 
http://bugs.python.org/issue1039 and could be fixed in the same way.

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components: Interpreter Core
messages: 196988
nosy: SSchukat
priority: normal
severity: normal
status: open
title: os.spawnXX functions terminates process if second argument is empty list
versions: Python 2.7

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