Plone 4.7 installation

I am getting the following error while trying to install plone 4.3.7.
How to overcome this ?

Download error on unknown url type: https -- Some packages may not be found!
Getting distribution for 'zc.recipe.cmmi==1.3.5'.
Couldn't find index page for 'zc.recipe.cmmi' (maybe misspelled?)
Getting section lxml.
Initializing section lxml.
Installing recipe z3c.recipe.staticlxml.
Getting distribution for 'zc.recipe.cmmi==1.3.5'.
Error: Couldn't find a distribution for 'zc.recipe.cmmi==1.3.5'

Try to re-run buildout in case of a flaky PyPI availability.


On occasion the Python I was using did not have HTTPS support; it was missing OpenSSL on the system, for example.

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And that usually means you have to re-compile python once you have openssl installed...

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