Max Katsev <mkat...@fb.com> added the comment:
Note that deepcopy doesn't work either, even though it looks like it does at the first glance (which is arguably worse since it's harder to notice): Python 3.8.6 (default, Jun 4 2021, 05:16:01) >>> import copy, os, subprocess >>> env_copy = copy.deepcopy(os.environ) >>> env_copy["TEST"] = "oh no" >>> os.environ["TEST"] Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/fbcode/platform009/lib/python3.8/os.py", line 675, in __getitem__ raise KeyError(key) from None KeyError: 'TEST' >>> subprocess.run("echo $TEST", shell=True, >>> capture_output=True).stdout.decode() 'oh no\n' ---------- nosy: +mkatsev _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue15373> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com