makeTestCollection

lsst.daf.butler.tests.makeTestCollection(repo)

Create a read/write Butler to a fresh collection.

Parameters:
repo : lsst.daf.butler.Butler

A previously existing Butler to a repository, such as that returned by makeRepo or makeTestRepo.

Returns:
butler : lsst.daf.butler.Butler

A Butler referring to a new collection in the repository at root. The collection is (almost) guaranteed to be new.