On Jan 22, 2007, at 7:02 AM, Jeff Kowalczyk wrote:
>
> I wanted to see how the Widget Browser, and finding it short, I wanted
> to see if installed ToscaWidgets could be loaded in the same way. I
> can
> obtain the list, but load() the widget modules, starting with
> toscawidgets.widgets.forms fails setuptools Requirement.parse:
>
> ----
> In [1]: import pkg_resources
>
> In [2]: for widget_mod in
> pkg_resources.iter_entry_points("toscawidgets.widgets"): print
> widget_mod
> ...:
> forms = toscawidgets.widgets.forms
> jquery = toscawidgets.widgets.jquery
> mochikit = toscawidgets.widgets.mochikit
> tinymce = toscawidgets.widgets.tinymce
>
> In [3]: for widget_mod in
> pkg_resources.iter_entry_points("toscawidgets.widgets"):
> widget_mod.load()
> ...:
> ----------------------------------------------------------------------
> -----
> pkg_resources.VersionConflict Traceback
> (most
> recent call last)
>
> /usr/lib/python2.4/site-packages/setuptools-0.6c5-py2.4.egg/
> pkg_resources.py
> in load(self, require, env, installer)
> 1827
> 1828 def load(self, require=True, env=None, installer=None):
> -> 1829 if require: self.require(env, installer)
> 1830 entry = __import__(self.module_name,
> globals(),globals(), ['__name__'])
> 1831 for attr in self.attrs:
>
> /usr/lib/python2.4/site-packages/setuptools-0.6c5-py2.4.egg/
> pkg_resources.py
> in require(self, env, installer)
> 1840 raise UnknownExtra("Can't require() without a
> distribution", self)
> 1841 map(working_set.add,
> -> 1842
> working_set.resolve(self.dist.requires(self.extras),env,installer))
> 1843
> 1844
>
> /usr/lib/python2.4/site-packages/setuptools-0.6c5-py2.4.egg/
> pkg_resources.py
> in resolve(self, requirements, env, installer)
> 485 if dist not in req:
> 486 # Oops, the "best" so far conflicts with a
> dependency
> --> 487 raise VersionConflict(dist,req) # XXX put more
> info here
> 488
> requirements.extend(dist.requires(req.extras)[::-1])
> 489 processed[req] = True
>
> VersionConflict: (ToscaWidgets 0.1a1dev-r2403
> (/software/svn/ToscaWidgets), Requirement.parse
> ('ToscaWidgets>=0.1a1'))
> ----
>
> Is this a quirk of the dev-rN version unseparated suffix employed by
> ToscaWidgets? It seems to a convention in common use, but I don't know
> whether setuptools' version name conventions are expected evaluate
> this
> name to 'greater than'. I don't think there would be any problem with
> the released 0.1a1.
>
> Thanks, I'll file a bug if this is something valid that should be
> fixed.
Doh! I forgot to bump the dev version in SVN to 0.1a2, setuptools
treats dev version names as lower than releases hence the
VersionConflict. I guess you're running fropm SVN, right? If this is
the case update your chechout, "python setup-py develop" and you'll
be fine.
Thanks for spotting it.
Alberto
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