Use of collections.OrderedDict ties funnelweb to Python 2.7

[mjpieters]

collections.OrderedDict was added to Python in version 2.7 making funnelweb not usable for Python 2.6 users.

A backport is available, so it should be easy to make funnelweb use that:

try:
    from collections import OrderedDict
except ImportError:
    # python 2.6 or earlier, use backport
    from ordereddict import OrderedDict

and extend setup.py to add ordereddict to the install_requires list if from collections import OrderedDIct fails:

install_requires = [
    'setuptools',
    'collective.transmogrifier',
    'transmogrify.webcrawler>=1.1',
    'transmogrify.siteanalyser>=1.2',
    'transmogrify.htmlcontentextractor>=1.0',
    'transmogrify.ploneremote>=1.2',
    'mr.migrator>=1.0',
]
try:
    from collections import OrderedDict
except ImportError:
    # No OrderedDict, add `ordereddict` to requirements
    install_requires.append('ordereddict')

setup(
    # everything else
    install_requires = install_requires,
    # and the rest
)

[djay]

I've made those changes and committed that code. Waiting to release the packages.

[mjpieters]

Thanks Dylan! I probably should have filed this in the transmogrify.webcrawler package instead, but this worked, obviously.

[mjpieters]

The transmogrify.ploneremote package has the same problem (transmogrify/ploneremote/remoteprune.py). There may be more.