Avoid string types when using ClassVar

As of Python 3.9.8, this does not work with Pydantic BaseModel, and does not work in a way that causes the whole module to fail to import. See pydantic/pydantic#3401. In general, Pydantic does not work well with string types as enabled by from __future__ import annotations.
lsst · Nov 11, 2021 · b9dacf1 · b9dacf1
1 parent d67b257
commit b9dacf1
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diff --git a/python/lsst/daf/butler/core/logging.py b/python/lsst/daf/butler/core/logging.py
@@ -19,8 +19,6 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from __future__ import annotations
-
 __all__ = ("ButlerMDC", "ButlerLogRecords", "ButlerLogRecordHandler",
            "ButlerLogRecord", "JsonLogFormatter")
 

diff --git a/python/lsst/daf/butler/core/serverModels.py b/python/lsst/daf/butler/core/serverModels.py
@@ -19,8 +19,6 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from __future__ import annotations
-
 __all__ = (
     "QueryDatasetsModel",
     "QueryDataIdsModel",