it looks correct to me. argv[0] of the underlying os call execve is the
first argument given to the process that is being run, which is how you
can run a symlink to a program and have the binary image be FOO but
argv[0] be BAR.
So 'a' is passed in to execv, and then an additional redirection occurs where
the #! line is evaluated, and the new image of /usr/bin/env is chosen, - man
execve explains this. So the final thing executed is
[/usr/bin/env python b c d e] with a argv[0] of 'a', but then it exec's again
to run python.
** Changed in: python-defaults (Ubuntu)
Status: New => Invalid
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python os.execv* bug
https://bugs.launchpad.net/bugs/174830
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