Shane Hathaway wrote:
Jim Fulton wrote:

It also doesn't handle global data properly.

It tries to do something that Python modules were never
designed to support, which is to load them more than once.


However, given the existence of the reload() builtin, someone apparently
believed Python modules *were* designed to support reloading.  Because
reload() is a builtin, Python seems to promise that reload() is
reliable, but in fact it's rarely reliable.  There would be a lot less
confusion if reload() were moved somewhere like the "imp" module.

Yup.

When it fails, it does so in subtle ways that cause people
to lose lots of time.


I agree.  The right way to refresh is to detect code changes (ideally
using Linux's brand new inotify mechanism, or something similar when
inotify is not available), display a "please wait" message to the user,
and restart the process.

Doing so automatically could still be a problem.  If you are developing
you don't want the prpcess to restart automatically because a file
changed.  The change could be incomplete or the process could have
precious non-persistent state.

Jim

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