On 2/1/2019 9:24 AM, Ken Hilton wrote:
Hi,As a workaround/alternative, you can just do >>> import os >>> os.system('dir')
For repeated use within and between sessions, put 'from os import system as oss' in a startup file. Then one only needs "oss('dir')". Note that 'dir' only works on Windows; the unix equivalent is 'ls'.
However this will not work in a gui IDE without special handling in the IDE. This docstring for os.system says "Execute the command in a subshell." (It should say "Execute the command in a subshell and return the exitcode.") I presume that this docstring assumes that one is running python is a system shell and that the subshell is a 'sub' of the system shell.
Anyway, the subshell expects the output, in this case, a directory listing, to go to an attached system console. If one enters the above in IDLE's shell, the output does not appear in IDLE's shell. If one started IDLE in a terminal with 'python(3) -m idlelib', it goes to that terminal. Otherwise, it goes to a subshell which immediately closes and which may or may not flash on the screen.
-- Terry Jan Reedy _______________________________________________ Python-ideas mailing list [email protected] https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
