[4suite] Installation problems - 2.0?

[Uche Ogbuji]

Andy Gimblett wrote:

> Well, here comes a newbie with an installation question... I've
> just installed python2.0 from source and everything seems to be
> working happily in general - but I can't 4DOM to work. Now, I didn't
> get it to work under 1.5.2 either so maybe this is not surprising, but
> since 2.0's relatively new I thought I'd ask... Has anyone else
> out there installed vs. 2.0 and had problems?

What was the problem under 1.52?  We haven't done any testing with 2.0.

> Getting specific...
> 
> First let me quote an excerpt from 4DOM.spec, which was the only
> source of installation instruction I could find):

4DOM.spec is an RPM spec file for building RPM packages.  ignore the
%prep and %setup.  But really, all you need to do to set up 4DOM is copy
it to your PYTHONPATH.

> Now, obviously with a 2.0 installation those paths become something more
> like /usr/local/lib/python2.0/site-packages/..., but two questions remain:

Doesn't it work if you just do a

mkdir /usr/local/lib/python2.0/site-packages/xml
touch /usr/local/lib/python2.0/site-packages/xml/__init__.py
cp -r 4dom-0.9.2 /usr/local/lib/python2.0/site-packages/xml
mv /usr/local/lib/python2.0/site-packages/xml/4dom-0.9.2
/usr/local/lib/python2.0/site-packages/xml/dom

But wait a minute.  What do we do with xmlsig?  4DOM uses sax, which I
understand is not in Python 2.0, (but not 1.6).  However, I'm not aware
of how to make those imports.

Can anyone at xml-sig help?

Note that the changes would go in
/usr/local/lib/python2.0/site-packages/xml/dom/ext/reader


> 1. The 2.0 installation included some XML stuff, but it's installed
>    to    /usr/local/lib/python2.0/xml/
>    not   /usr/local/lib/python2.0/site-packages/xml
> 
>    Should I be putting my 4DOM bits in .../xml/... or
>    .../site-packages/xml/... ? (More analysis below)

The latter

> 2. The "prep" section: What is setup? Part of distutils? Should I be
>    worried that I have not performed this step?

Ignore them: they're RPM-specific things.

> If I install to .../xml/, and try to run the HTML demo "python
> dom_from_html_file.py employee_table.html", I get "ImportError: cannot
> import name implementation" when trying to execute "from xml.dom import
> implementation" in .../xml/dom/Node.py - and indeed there is no
> implementation.py in xml/dom...

it's not implementation.py.  It's an "implementation" object in
xml/dom/__init__.py

> If I install to .../site-packages/xml/, it can't import HTMLlib from reader,
> even if there are __init__.py's all the way: I presume this is a clash
> between
> the files in .../xml and .../site-packages/xml?

Probably.  Use site-packages.


We'll help as much as we can.  Hopefully we'll have a chance to try out
Python 2.0 and add some instructions to our upcoming release.

-- 
Uche Ogbuji                               Principal Consultant
uche.ogbuji at fourthought.com               +1 303 583 9900 x 101
Fourthought, Inc.                         http://Fourthought.com 
4735 East Walnut St, Ste. C, Boulder, CO 80301-2537, USA
Software-engineering, knowledge-management, XML, CORBA, Linux, Python