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Straighten out the docs for os.system(); the Unix and Windows behaviors

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really can't be smushed together.

Bugfix candidate.
This commit is contained in:
Tim Peters 2003-05-20 16:15:58 +00:00
parent 6bab183d4e
commit dbaf04ead6
1 changed files with 13 additions and 5 deletions
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18
Doc/lib/libos.tex
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@ -1514,11 +1514,19 @@ Execute the command (a string) in a subshell. This is implemented by
calling the Standard C function \cfunction{system()}, and has the
same limitations. Changes to \code{posix.environ}, \code{sys.stdin},
etc.\ are not reflected in the environment of the executed command.
The return value is the exit status of the process encoded in the
format specified for \function{wait()}, except on Windows 95 and 98,
where it is always \code{0}. Note that \POSIX{} does not specify the
meaning of the return value of the C \cfunction{system()} function,
so the return value of the Python function is system-dependent.
On \UNIX the return value is the exit status of the process encoded in the
format specified for \function{wait()}. Note that \POSIX{} does not
specify the meaning of the return value of the C \cfunction{system()}
function, so the return value of the Python function is system-dependent.
On Windows the return value is that returned by the system shell after
running \var{command}, given by the Windows environment variable
\code{COMSPEC}: on \code{command.com} systems (Windows 95, 98 and ME)
this is always \code{0}; on \code{cmd.exe} systems (Windows NT, 2000
and XP) this is the exit status of the command run; on systems using
a non-native shell, consult your shell documentation.
Availability: \UNIX, Windows.
\end{funcdesc}