On 6 Dec 2002, Martin v. [iso-8859-15] L=F6wis wrote:
> Kevin Jacobs <jacobs@penguin.theopalgroup.com> writes:
>=20
> > for filename in os.listdir(__path__[0]):
> > if not filename.endswith('.py') or filename.startswith('__'):
> > continue
> [...]
> > Clearly, the above code can be redone in a much nicer way that doesn'=
t
> > depend on __path__, the qualified base package name, and __import__.
>=20
> That would break only if the package becomes part of a zipfile, right?
> And, if it is in a zipfile, it breaks no matter what mechanism we find
> for zipfile imports, since it relies on os.listdir to obtain the
> package contents, right?
Yup -- which is why I've just added an item to our task queue to avoid th=
e
filesystem entirely for this kind of code.
> > 2) They don't care if Python stores objects, strings, or bananas in
> > sys.path, so long as=20
> >=20
> > sys.path=3Dmap(str,sys.path)=20
> >=20
> > results in a human-readable path and does not change how imports=
occur.
>=20
> For Just's patch, that is only true for zipfile imports. If you would
> also provide URL, or .tgz import with his patch, then you'll loose the
> magic when converting the path back to strings.
Hmmm. I haven't looked that closely at Just's proposal. Why should .tgz=
or
http://xyz be treated any differently than .zip?
> > 3) They all want ZIP archives to be a builtin feature, but don't ca=
re if
> > they have to write an extra line of code to register a TAR/BZ2/w=
hatever
> > import hook.
>=20
> Clearly, with Jim's patch, they'ld only get zipfile import, period.
The sentiment seemed to be that zipfiles were an 80% solution and the res=
t
was icing on the cake. Of course, as their boss, I can overrule them and
say that I also need an import mechanism that can also gracefully support
cryptographically signed modules (native and in zipfiles) too. ;)
-Kevin
--
Kevin Jacobs
The OPAL Group - Enterprise Systems Architect
Voice: (216) 986-0710 x 19 E-mail: jacobs@theopalgroup.com
Fax: (216) 986-0714 WWW: http://www.theopalgroup.com
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