Terry J. Reedy added the comment: The current tests do not write anything. But IDLE currently requires the existence of .idlerc to run, and tries to write it if not found. Changing this requirement without disabling multiple features would not be trivial. On possibility might be to replace builtin open with a wrapper that returned named StringIO objects when the path began with '.idlerc/'. The StringIO would have to be cached so that closing and reopening the same path got the same object. But this is only good for one process. See below.
There are two existing issues, #8231 and #15862, about HOME not being writable and not existing. The first has a patch I wrote 2 years ago trying to do what you suggest above. It used tempfile.mkdtemp for 2.7 compatibility, by I would now use TemporaryDirectory. The discussion ended at that time with some unresolved issues. One in particular is that IDLE runs with two processes, with the user execution process being based on run.py. One of the idlelib modules imported by run eventually imports config. See msg253681 and msg253714. The is already a mechanism for test_idle to tell idlelib module 'testing'. If and when #8231 is solved, that mechanism could be used to ignore $HOME. ---------- dependencies: +IDLE: startup problem when HOME does not exist, Unable to run IDLE without write-access to home directory _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue30869> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
