Erik Max Francis <[EMAIL PROTECTED]> wrote: > Shane Hathaway wrote: > > > Let me fully elaborate the heresy I'm suggesting: I am talking about > > inline imports on every other line of code. The obvious implementation > > would drop performance by a double digit percentage. > > Module importing is already idempotent. If you try to import an > already-imported module, inline or not, the second (or subsequent) > imports are no-operations.
Hmmm, yes, but they're rather SLOW no-operations...: Helen:~ alex$ python -mtimeit -s'import sys' 'import sys' 100000 loops, best of 3: 3.52 usec per loop Now this is just a humble ultralight laptop, to be sure, but still, to put the number in perspective...: Helen:~ alex$ python -mtimeit -s'import sys' 'sys=23' 10000000 loops, best of 3: 0.119 usec per loop ...we ARE talking about a factor of 30 or so slower than elementary assignments (I'm wondering whether this may depend on import hooks, or, what else...). Alex -- http://mail.python.org/mailman/listinfo/python-list
