I18N used without proper import

[Sahdev Zala]

ValueError(_("%(path)s is not a valid file.") in tosca template is used without proper import.

[Miguel Caballer (micafer1)]

I also have this problem

In my tests it affects to these files:

tosca_template.py
elements/property_definition.py

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/242334

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/242334
Committed: https://git.openstack.org/cgit/openstack/tosca-parser/commit/?id=fa0cd927ebd36abc7de940e1c7d2fce0564f1d4f
Submitter: Jenkins
Branch: master

commit fa0cd927ebd36abc7de940e1c7d2fce0564f1d4f
Author: spzala <email address hidden>
Date: Thu Nov 5 21:00:51 2015 -0800

    Fix and test the validation of template file

    The validation message is created without proper import. Add it with new test.

    Change-Id: Ia8a815e5f4b4c267e8a96faeebe8b5f9afe2b364
    Partial-Bug: #1502937

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/247794

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/247794
Committed: https://git.openstack.org/cgit/openstack/tosca-parser/commit/?id=a2c5ba1ab9f80742d10da259a082cf0638c734c6
Submitter: Jenkins
Branch: master

commit a2c5ba1ab9f80742d10da259a082cf0638c734c6
Author: spzala <email address hidden>
Date: Thu Nov 19 13:23:40 2015 -0800

    Fix missing import with new test

    The error message was created without proper import and test. Add it
    with new test.

    Change-Id: Id6b63e9c1831bd2a1210b30946efb4febb1cc8d8
    Closes-Bug: #1502937