Buildout and Version Problems

// under buildout easy_install python

Two blog entries in one day - wow it’s been a good work day.

Just a quick chronicle of my thoughts: version conflicts in buildout aren’t always pretty. My latest escapade into trying to load up Varnish through zc.buildout resulted in a hair-tearing out message:

An internal error occured due to a bug in either zc.buildout or in a
recipe being used:
Traceback (most recent call last):
File "/tmp/tmp8o-_PD/zc.buildout-1.1.1-py2.4.egg/zc/buildout/buildout.py", line 1477, in main
File "/tmp/tmp8o-_PD/zc.buildout-1.1.1-py2.4.egg/zc/buildout/buildout.py", line 346, in install
File "/tmp/tmp8o-_PD/zc.buildout-1.1.1-py2.4.egg/zc/buildout/buildout.py", line 857, in getitem
File "/tmp/tmp8o-_PD/zc.buildout-1.1.1-py2.4.egg/zc/buildout/buildout.py", line 938, in _initialize
File "/tmp/tmp8o-_PD/zc.buildout-1.1.1-py2.4.egg/zc/buildout/buildout.py", line 901, in _install_and_load
File "/usr/lib/python2.4/site-packages/setuptools-0.6c9-py2.4.egg/pkg_resources.py", line 277, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python2.4/site-packages/setuptools-0.6c9-py2.4.egg/pkg_resources.py", line 2179, in load_entry_point
raise ImportError("Entry point %r not found" % ((group,name),))
ImportError: Entry point ('zc.buildout', 'default') not found

What??? What’s that supposed to mean?

Turns out I managed to stumble upon the cause: our local PyPi repository had actually already had an old version of the plone.recipe.varnish source on it and my buildout needed the latest version. Even though I’d directed buildout to seek out such version, my cache folder already thought it was satisfied.

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