You might consider trapping calls to file() too, which is an alias for open().
Also, I think I'd do my logging before calling the real function. It depends how you want to deal with exceptions. Farshid Lashkari wrote: > Hi, > > My goal is to detect all (or most) file dependencies of a script (i.e. > modules, dlls, data files). Currently, after a script is finished > executing I use sys.modules to determine all module dependencies, and I > use win32process.EnumProcessModules to determine DLL dependencies. This > works reasonably well, however I would still like to detect dependencies > from regular file open calls. > > I did a little test by modifying __builtins__.open to point to a custom > function that forwards the call to the original open function and saves > the filename to a list. It seemed to work for simple test cases. Here is > the code: > > def open_hook(*args,**kwargs): > r = open_real(*args,**kwargs) > saveFileName(args[0]) > return r > > open_real = __builtins__.open > __builtins__.open = open_hook > > Is this a safe approach? Is there a more efficient way of doing this? I > realize that some dependencies will still fall through my checks, > especially file opens from C extensions, which is fine. I just want to > be able to detect the most common use cases. Any other suggestions are > appreciated. > > -Farshid -- Dale Strickland-Clark Riverhall Systems - www.riverhall.co.uk -- http://mail.python.org/mailman/listinfo/python-list
