Fix types and add lint to automerge (#1932)

.github/workflows/tests.yml

@@ -94,14 +94,6 @@ jobs:
         with:
           ignore_links: 'https://ipywidgets.readthedocs.io/en/latest/examples/Output'
 
-  pre_commit:
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    steps:
-      - uses: actions/checkout@v3
-      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
-      - uses: jupyterlab/maintainer-tools/.github/actions/pre-commit@v1
-
   test_minimum_versions:
     name: Test Minimum Versions
     timeout-minutes: 20
@@ -154,7 +146,7 @@ jobs:
     if: always()
     needs:
       - run-tests
-      - pre_commit
+      - test_lint
       - test_minimum_versions
       - test_prereleases
       - check_links

nbconvert/filters/highlight.py

@@ -163,7 +163,7 @@ def _pygments_highlight(source, output_formatter, language="ipython", metadata=N
     lexer = None
     if language == "ipython2":
         try:
-            from IPython.lib.lexers import IPythonLexer  # type:ignore
+            from IPython.lib.lexers import IPythonLexer
         except ImportError:
             warn("IPython lexer unavailable, falling back on Python")
             language = "python"

nbconvert/filters/strings.py

@@ -226,7 +226,7 @@ def ipython2python(code):
         IPython code, to be transformed to pure Python
     """
     try:
-        from IPython.core.inputtransformer2 import TransformerManager  # type:ignore
+        from IPython.core.inputtransformer2 import TransformerManager
     except ImportError:
         warnings.warn(
             "IPython is needed to transform IPython syntax to pure Python."

nbconvert/utils/lexers.py

@@ -3,4 +3,4 @@
 
 warn("nbconvert.utils.lexers is deprecated as of 5.0. Use IPython.lib.lexers")
 
-from IPython.lib.lexers import *  # type:ignore  # noqa
+from IPython.lib.lexers import *  # noqa