Re: [Jython-users] partial imports

[Kevin B. <kb...@ca...>]

Samuele Pedroni wrote:
> From: <Mat...@i2...>
> > >>> import a
> > ...NameError...
> > >>> import a
> > >>> a.foo

> Is the BDFL (Guido van Rossum) intended behavior,
> 
> the point is that, if an import fails somehow, you are on your own,
> if you know how to cleanup things you can do that explicitly
> 
...
> the precise rationale is something also Guido continously forget
> about.

I've found it quite handy helping to debug the problem that caused the error.

import x
<error>
from x import *
<look at values that led to the failure...>

It is easy enough to re-execute the failed import with the reload() function:

import x
<error>
import x
reload( x ) # executes your fixed code, or triggers the failure again.

Standard caveats about Python's non-recursive reload() apply.  :-)

kb