[vistrails-dev] [VisTrails] Load valid or latest package version (#1135)

Tommy Ellqvist notifications at github.com
Fri Oct 16 09:51:59 EDT 2015

Adds a heuristic for selecting the best package version when multiple are available:

1. Select packages that pass requirements
2. Select latest package version

Caveat: This can cause package_requirements() to be called earlier, but this is only called when trying to load a package anyway.

- identifier_is_available:
    This method maps identifiers to codepaths, and returns
    the first match. This has been updated to return valid
    packages first (That passes package_requirements()),
    or the latest version if all versions are valid or invalid.

This is used by matplotlib that use different packages for
different versions of matplotlib. (#1133)
You can view, comment on, or merge this pull request online at:


-- Commit Summary --

  * Load valid or latest package version

-- File Changes --

    M vistrails/core/packagemanager.py (45)

-- Patch Links --


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