On Thu, 18 Feb 2010 00:03:51 -0800, Jonathan Gardner wrote: > On Feb 17, 10:48 pm, Sreejith K <sreejith...@gmail.com> wrote: >> Hi everyone, >> >> I need to implement custom import hooks for an application >> (http://www.python.org/dev/peps/pep-0302/). I want to restrict an >> application to import certain modules (say socket module). Google app >> engine is using a module hook to do this (HardenedModulesHook in >> google/ appengine/tools/dev_appserver.py). But I want to allow that >> application to use an sdk module (custom) which imports and uses socket >> module. But the module hook restricts the access by sdk. Finding out, >> which file is importing a module give a solution?? ie. If the >> application is importing socket module, I want to restrict it. But if >> the sdk module is importing socket I want to allow it. Is there any way >> I can do this ? >> >> Application >> ======== >> import sdk >> import socket # I dont want to allow this (need to raise >> ImportError) >> >> SDK >> ==== >> import socket # need to allow this > > > SDK > === > import socket > > App > === > import SDK > import sys > socket = sys.modules['socket']
I'm not sure, but I think Sreejith wants to prohibit imports from the App layer while allowing them from the SDK layer, not work around a prohibition in the SDK layer. In other words, he wants the import hook to do something like this: if module is socket and the caller is not SKD: prohibit else allow I could be wrong of course. -- Steven -- http://mail.python.org/mailman/listinfo/python-list