Hi, It seems I cannot override, for a single buildout part, the version information of the global [versions] section. Is this possible and I just overlooked something? If not, I intend to add support for that on zc.recipe.egg and/or z3c.recipe.scripts recipes. Any comments? And where can I find the source for z3c.recipe.scripts? More details below: I've frequently found myself in the situation of needing to install, on the same buildout, different parts containing eggs with conflicting version requirements. It would be useful if I could specify a version information that overrode the global [versions] information, in a part with a zc.recipe.egg or z3c.recipe.scripts recipe. Notice that specifying the version on the 'eggs' setting doesn't work to override the global [versions] specification. I.e., the following buildout.cfg: [buildout] parts = testbrower versions=versions [versions] zope.testbrowser=3.6.0a2 [testbrower] recipe = zc.recipe.egg eggs = zope.testbrowser==3.11.1 ------- Fails with: The version, 3.6.0a2, is not consistent with the requirement, 'zope.testbrowser==3.11.1'. While: Installing testbrower. Error: Bad version 3.6.0a2 What would be nice is if I could say something like: [buildout] parts = testbrower versions=versions [versions] zope.testbrowser=3.6.0a2 [testbrowser-versions] zope.testbrowser=3.11.1 [testbrower] recipe = zc.recipe.egg versions = testbrowser-versions eggs = zope.testbrowser ------- Or maybe even: (...) [testbrower] recipe = zc.recipe.egg versions = zope.testbrowser = 3.11.1 eggs = zope.testbrowser ------- And then have buildout pick my version override only while installing the eggs in that part. The buildout easy_install API can already [1] accept a local version specification in the 'versions' keyword to the zc.buildout.easy_install.install() function. It also specifies that the global version specification can be retrieved and modified through the zc.buildout.easy_install.default_versions() function. [1] http://pypi.python.org/pypi/zc.buildout/1.5.2#specifying-version-information... However, the docs don't say what happens if both a default_versions() is set and a "versions=" keyword is passed to .install() containing conflicting information. In a worse case scenario, I could save the results of zc.buildout.easy_install.default_versions() and restore after calling .install() with the overridden versions. Any comments, for or against? Jim? Cheers, Leo