[Python-Dev] New Import Hooks PEP, a first draft (and req. for PEP #)

[James C. Ahlstrom]

Thomas Heller wrote:

> But then, how would this (working) code have to be written with the
> new imp.find_module() function:
> 
>     def get_exe_bytes (self):
>         # wininst.exe is in the same directory as this file
>         directory = os.path.dirname(__file__)
>         filename = os.path.join(directory, "wininst.exe")
>         return open(filename, "rb").read()


It would look like this:

   suffix = [(".exe", "rb", 0)]
   file, path, descr = imp.find_module("wininst", __path__, suffix)
   data = file.read()
   file.close()
   return data

Note that for a zip file, __file__ is something like
      C:/Python/lib/zarchive.zip/subdir/mymod.pyc
and nothing is going to make code using __file__ Just Work.

Well, maybe you could strip the last component "mymod.pyc" and
use it as __path__ in a call to imp.find_module().  Not too
hard, and it works with files and zip archives.  But maybe not
with future ftp:// imported modules.

Your code knows the directory.  My version would search in your
package __path__ for it.  But you only have one wininst.exe per
package, right?  And maybe putting it on package path is a feature.

JimA