On 02Aug2015 18:18, Chris Angelico <ros...@gmail.com> wrote:
On Sun, Aug 2, 2015 at 6:16 PM, Chris Angelico <ros...@gmail.com> wrote:
On Sun, Aug 2, 2015 at 5:41 PM, Steven D'Aprano <st...@pearwood.info> wrote:
* if you don't wish to do that, you're screwed, and I think that the
best you can do is program defensively by detecting the problem
after the event and bailing out:
# untested
import __main__
import myactualfilename
if os.path.samefile(__main__.__path__, myactualfilename.__path__):
raise RuntimeError
Not sure what __path__ is here, as most of the things in my
sys.modules don't have it; do you mean __file__? In theory, it should
be possible to skim across sys.modules, looking for a match against
__main__, and raising RuntimeError if any is found.
Oops, premature send.
*In theory* it should be possible to do the above, but whichever
attribute you look for, some modules may not have it. How does this
play with, for instance, zipimport, where there's no actual file name
for the module?
To my eyes, badly, which IMO strengthens my case for addressing the situation
in the interpreter instead of requiring increasingly complex gyrations on the
part of every programmer on the planet:-)
Cheers,
Cameron Simpson <c...@zip.com.au>
The CBR and ZXR should come with a warning sticker that says 'You are not
Mick Doohan, do NOT be a prat' - UK's _BIKE_ magazine
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