john-bodley commented on code in PR #24197:
URL: https://github.com/apache/superset/pull/24197#discussion_r1204535917


##########
.pre-commit-config.yaml:
##########
@@ -15,14 +15,26 @@
 # limitations under the License.
 #
 repos:
+  - repo: https://github.com/MarcoGorelli/auto-walrus
+    rev: v0.2.2
+    hooks:
+      - id: auto-walrus
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v3.4.0
+    hooks:
+      - id: pyupgrade
+        args:
+          - --keep-runtime-typing

Review Comment:
   Though these hooks are great, with a code base as large and complex as ours 
there are always caveats. We have a minimum requirement of Python 3.9, however 
given:
   
   1. When I used the `--py39-plus` option it changed the typing from `Type` to 
`type` which is problematic per https://github.com/python/mypy/issues/15047.
   2. Per https://github.com/asottile/pyupgrade/issues/345 there's no way of 
skipping/ignoring lines.
   3. Per https://github.com/asottile/pyupgrade/issues/592 the 
`--keep-runtime-typing` is ignored for `--py39-plus`
    
   The only viable route seemed to be to take the more conservation option and 
specify `--py38-plus` which does support `--keep-runtime-typing`. Hopefully 
once the Mypy etc. issues are resolved we can relax this constraint as there' 
are some great upgrades to be had, i.e., 
   
   ```python
   Optional[List[str]]
   ```
   
   becomes
   
   ```python
   list[str] | None
   ```
    



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