I have a script which attempts to re-invoke itself using sys.argv, but it fails when run with "python -m package.module".  The problem is that the handling of -m (via the runpy module) rewrites sys.argv as if it were run as "python package/module.py", but the two command lines are not equivalent:  With -m the current directory is inserted at the head of sys.path, but without -m it's the directory containing module.py.  The net effect is that the initial run of "python -m package.module" works as expected, but when it re-runs itself as "python package/module.py" the imports from module.py are effectively relative instead of absolute.

One possible solution would be to provide an immutable sys.__argv__ (by analogy with sys.__stdout__ and friends).