@@ -25,7 +25,6 @@ jobs:
 
       - name: Run mypy stubtest
         run: |
-          set -o pipefail
           # the ignore missing imports can be removed when typed cycler is released and used
           MPLBACKEND=agg python -m mypy.stubtest matplotlib --mypy-config-file pyproject.toml \
                                 --allowlist ci/mypy-stubtest-allowlist.txt
@@ -65,7 +65,7 @@ jobs:
           REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           set -o pipefail
-          # the ignore missing imports can be removed when typed cycler is released and used
+          # The --ignore-missing-imports can be removed when typed cycler is released and used
           mypy --config pyproject.toml lib/matplotlib \
              --ignore-missing-imports \
              --follow-imports silent | \
 
@@ -8,6 +8,7 @@ __all__ = [
     "get_cachedir",
     "get_data_path",
     "matplotlib_fname",
+    "MatplotlibDeprecationWarning",
     "RcParams",
     "rc_params",
     "rc_params_from_file",
 
@@ -1,4 +1,4 @@
-# Extra pip requirements for the GitHub Actions flake8 build
+# Extra pip requirements for the GitHub Actions mypy build
 
 mypy
 
 
@@ -28,7 +28,7 @@
   - Inheritance makes the set arithmetic harder when only loading AST
   - Attributes also make it more complicated when defined in init
 - Functions type hinted with ``overload`` are ignored for argument checking
-  - Usually this means the implementation is is less strict in signature but will raise
+  - Usually this means the implementation is less strict in signature but will raise
     if an invalid signature is used, type checking allows such errors to be caught by
     the type checker instead of at runtime.
 - Private attribute/functions are ignored
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# Extra pip requirements for the GitHub Actions flake8 build`
	`1`	`+# Extra pip requirements for the GitHub Actions mypy build`
`2`	`2`
`3`	`3`	`mypy`
`4`	`4`