[issue4672] Distutils SWIG support blocks use of SWIG -outdir option

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

Lists are used because that’s what the UNIX exec call accepts, or the constructor of subprocess.Popen.

About using %r in error messages, see also #11599.

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nosy: +eric.araujo

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