FIX: Typing annotations (#12683)

Running `mypy -p IPython.sphinxext` raised a few errors. Fix them and
strip some trailing whitespace from a few places.

IPython/core/inputsplitter.py

@@ -15,6 +15,7 b' and stores the results.'
 
 For more details, see the class docstrings below.
 """
+
 from __future__ import annotations
 
 from warnings import warn

IPython/core/tests/test_inputtransformer2.py

@@ -4,6 +4,7 b' Line-based transformers are the simpler ones; token-based transformers are'
 more complex. See test_inputtransformer2_line for tests for line-based
 transformations.
 """
+
 import platform
 import string
 import sys

IPython/core/tests/test_paths.py

@@ -160,14 +160,16 b' def test_get_ipython_dir_8():'
         # test only when HOME directory actually writable
         return
 
-    with patch.object(paths, "_writable_dir", lambda path: bool(path)), patch.object(
-        paths, "get_xdg_dir", return_value=None
-    ), modified_env(
-        {
-            "IPYTHON_DIR": None,
-            "IPYTHONDIR": None,
-            "HOME": "/",
-        }
+    with (
+        patch.object(paths, "_writable_dir", lambda path: bool(path)),
+        patch.object(paths, "get_xdg_dir", return_value=None),
+        modified_env(
+            {
+                "IPYTHON_DIR": None,
+                "IPYTHONDIR": None,
+                "HOME": "/",
+            }
+        ),
     ):
         assert paths.get_ipython_dir() == "/.ipython"
 

IPython/external/qt_loaders.py

@@ -8,6 +8,7 b' bindings, which is unstable and likely to crash'
 This is used primarily by qt and qt_for_kernel, and shouldn't
 be accessed directly from the outside
 """
+
 import importlib.abc
 import sys
 import os

IPython/lib/clipboard.py

@@ -1,5 +1,6 b''
 """ Utilities for accessing the platform's clipboard.
 """
+
 import os
 import subprocess
 

IPython/sphinxext/custom_doctests.py

@@ -107,7 +107,7 b' def float_doctest(sphinx_shell, args, input_lines, found, submitted):'
         try:
             rtol = float(args[2])
             atol = float(args[3])
-        except IndexError as e:
+        except IndexError:
             e = ("Both `rtol` and `atol` must be specified "
                  "if either are specified: {0}".format(args))
             raise IndexError(e) from e

IPython/sphinxext/ipython_directive.py

@@ -174,7 +174,7 b' To Do'
 
 # Authors
 # =======
-# 
+#
 # - John D Hunter: original author.
 # - Fernando Perez: refactoring, documentation, cleanups, port to 0.11.
 # - VáclavŠmilauer <eudoxos-AT-arcig.cz>: Prompt generalizations.
@@ -196,6 +196,7 b' import ast'
 import warnings
 import shutil
 from io import StringIO
+from typing import Any, Dict, Set
 
 # Third-party
 from docutils.parsers.rst import directives
@@ -425,7 +426,7 b' class EmbeddedSphinxShell(object):'
         source_dir = self.source_dir
         saveargs = decorator.split(' ')
         filename = saveargs[1]
-        # insert relative path to image file in source 
+        # insert relative path to image file in source
         # as absolute path for Sphinx
         # sphinx expects a posix path, even on Windows
         path = pathlib.Path(savefig_dir, filename)
@@ -901,21 +902,22 b' class EmbeddedSphinxShell(object):'
 
 class IPythonDirective(Directive):
 
-    has_content = True
-    required_arguments = 0
-    optional_arguments = 4 # python, suppress, verbatim, doctest
-    final_argumuent_whitespace = True
-    option_spec = { 'python': directives.unchanged,
-                    'suppress' : directives.flag,
-                    'verbatim' : directives.flag,
-                    'doctest' : directives.flag,
-                    'okexcept': directives.flag,
-                    'okwarning': directives.flag
-                  }
+    has_content: bool = True
+    required_arguments: int = 0
+    optional_arguments: int = 4  # python, suppress, verbatim, doctest
+    final_argumuent_whitespace: bool = True
+    option_spec: Dict[str, Any] = {
+        "python": directives.unchanged,
+        "suppress": directives.flag,
+        "verbatim": directives.flag,
+        "doctest": directives.flag,
+        "okexcept": directives.flag,
+        "okwarning": directives.flag,
+    }
 
     shell = None
 
-    seen_docs = set()
+    seen_docs: Set = set()
 
     def get_config_options(self):
         # contains sphinx configuration variables

IPython/terminal/shortcuts/auto_match.py

@@ -4,6 +4,7 b' Utilities function for keybinding with prompt toolkit.'
 This will be bound to specific key press and filter modes,
 like whether we are in edit mode, and whether the completer is open.
 """
+
 import re
 from prompt_toolkit.key_binding import KeyPressEvent