[issue8191] Make arg0 required argument in os.execl* functions
Alexander Belopolsky
report at bugs.python.org
Mon Apr 19 16:26:20 CEST 2010
Alexander Belopolsky <alexander.belopolsky at gmail.com> added the comment:
Google code search for
os.execlp\([^*,]+\) lang:python
returns 15 hits, two of which are the same as Matthias found. I am not sure what these results mean for the issue (and Matthias does not reach a conclusion either.)
Note that the status quo in 3.x is that os.execlp(single_arg) is invalid, so all these examples will stop working in 3.x and will not be fixed by 2to3. My patch will only make failure happen sooner and reason for it more obvious.
I am not very happy about issue1039 (r57731) to begin with. (See my comments at issue8154.) It was rather hastily applied 3.x feature without a corresponding -3 warning and not even a mention in the NEWS file. However if r57731 stays as a strict POSIX compliance feature, I think it will be cleaner to enforce >1 argument to os.execl* functions in their signatures rather than in a run-time check.
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