[Twisted-Python] A useful value for argv[0]

Tommi Virtanen tv at twistedmatrix.com
Sun Feb 16 10:18:25 EST 2003


On Sun, Feb 16, 2003 at 01:22:50AM -0800, Brian Warner wrote:
> Is there any python way to change argv[0] in place? C apps can muck with it
> all they like.. is sys.argv[0] mutable in any useful way?

	C apps can't really muck with it all they like. There's a lot
	of limitations. In general, increasing the legth is not portably
	safe (without horrible kludges), and no minimum length can be
	guaranteed.

	The only simple, portable way is opportunistically resetting
	argv[0] if and only if the len(newValue) <= len(oldValue).

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