please linter

IPython/core/inputtransformer.py

@@ -217,11 +217,13 b' def _tr_system(line_info:LineInfo):'
     cmd = line_info.line.lstrip().lstrip(ESC_SHELL)
     return '%sget_ipython().system(%r)' % (line_info.pre, cmd)
 
+
 def _tr_system2(line_info:LineInfo):
     "Translate lines escaped with: !!"
     cmd = line_info.line.lstrip()[2:]
     return '%sget_ipython().getoutput(%r)' % (line_info.pre, cmd)
 
+
 def _tr_help(line_info:LineInfo):
     "Translate lines escaped with: ?/??"
     # A naked help line should just fire the intro help screen
@@ -230,6 +232,7 b' def _tr_help(line_info:LineInfo):'
 
     return _make_help_call(line_info.ifun, line_info.esc, line_info.pre)
 
+
 def _tr_magic(line_info:LineInfo):
     "Translate lines escaped with: %"
     tpl = '%sget_ipython().run_line_magic(%r, %r)'
@@ -241,16 +244,19 b' def _tr_magic(line_info:LineInfo):'
     t_magic_name = t_magic_name.lstrip(ESC_MAGIC)
     return tpl % (line_info.pre, t_magic_name, t_magic_arg_s)
 
+
 def _tr_quote(line_info:LineInfo):
     "Translate lines escaped with: ,"
     return '%s%s("%s")' % (line_info.pre, line_info.ifun,
                          '", "'.join(line_info.the_rest.split()) )
 
+
 def _tr_quote2(line_info:LineInfo):
     "Translate lines escaped with: ;"
     return '%s%s("%s")' % (line_info.pre, line_info.ifun,
                            line_info.the_rest)
 
+
 def _tr_paren(line_info:LineInfo):
     "Translate lines escaped with: /"
     return '%s%s(%s)' % (line_info.pre, line_info.ifun,
@@ -267,8 +273,7 b' tr = { ESC_SHELL : _tr_system,'
 
 @StatelessInputTransformer.wrap
 def escaped_commands(line:str):
-    """Transform escaped commands - %magic, !system, ?help + various autocalls.
-    """
+    """Transform escaped commands - %magic, !system, ?help + various autocalls."""
     if not line or line.isspace():
         return line
     lineinf = LineInfo(line)

IPython/utils/py3compat.py

@@ -57,6 +57,7 b' def execfile(fname, glob, loc=None, compiler=None):'
 
 PYPY = platform.python_implementation() == "PyPy"
 
+
 # Cython still rely on that as a Dec 28 2019
 # See https://github.com/cython/cython/pull/3291 and
 # https://github.com/ipython/ipython/issues/12068

IPython/utils/text.py

@@ -652,7 +652,9 b' def _get_or_default(mylist, i, default=None):'
         return mylist[i]
 
 
-def compute_item_matrix(items, row_first:bool=False, empty=None,*,  separator_size=2, displaywidth=80) -> Tuple[List[List[int]], Dict[str, int]] :
+def compute_item_matrix(
+    items, row_first: bool = False, empty=None, *, separator_size=2, displaywidth=80
+) -> Tuple[List[List[int]], Dict[str, int]]:
     """Returns a nested list, and info to columnize items
 
     Parameters
@@ -707,8 +709,13 b' def compute_item_matrix(items, row_first:bool=False, empty=None,*, separator_si'
         stacklevel=2,
         category=PendingDeprecationWarning,
     )
-    info = _find_optimal(list(map(len, items)), row_first, separator_size=separator_size, displaywidth=displaywidth)
-    nrow, ncol = info['max_rows'], info['num_columns']
+    info = _find_optimal(
+        list(map(len, items)),
+        row_first,
+        separator_size=separator_size,
+        displaywidth=displaywidth,
+    )
+    nrow, ncol = info["max_rows"], info["num_columns"]
     if row_first:
         return ([[_get_or_default(items, r * ncol + c, default=empty) for c in range(ncol)] for r in range(nrow)], info)
     else:
@@ -742,14 +749,21 b' def columnize(items, row_first=False, separator=" ", displaywidth=80, spread=Fa'
         category=PendingDeprecationWarning,
     )
     if not items:
-        return '\n'
+        return "\n"
     matrix:List[List[int]]
-    matrix, info = compute_item_matrix(items, row_first=row_first, separator_size=len(separator), displaywidth=displaywidth)
+    matrix, info = compute_item_matrix(
+        items,
+        row_first=row_first,
+        separator_size=len(separator),
+        displaywidth=displaywidth,
+    )
     if spread:
-        separator = separator.ljust(int(info['optimal_separator_width']))
+        separator = separator.ljust(int(info["optimal_separator_width"]))
     fmatrix:List[filter[int]] = [filter(None, x) for x in matrix]
-    sjoin = lambda x : separator.join([ y.ljust(w, ' ') for y, w in zip(x, info['column_widths'])])
-    return '\n'.join(map(sjoin, fmatrix))+'\n'
+    sjoin = lambda x: separator.join(
+        [y.ljust(w, " ") for y, w in zip(x, info["column_widths"])]
+    )
+    return "\n".join(map(sjoin, fmatrix)) + "\n"
 
 
 def get_text_list(list_, last_sep=' and ', sep=", ", wrap_item_with=""):

IPython/utils/tokenutil.py

@@ -24,7 +24,9 b' def generate_tokens(readline):'
         return
 
 
-def generate_tokens_catch_errors(readline, extra_errors_to_catch:Optional[List[str]]=None):
+def generate_tokens_catch_errors(
+    readline, extra_errors_to_catch: Optional[List[str]] = None
+):
     default_errors_to_catch = [
         "unterminated string literal",
         "invalid non-printable character",
@@ -86,6 +88,7 b' def line_at_cursor(cell, cursor_pos=0):'
         line = ""
     return (line, offset)
 
+
 def token_at_cursor(cell:str, cursor_pos:int=0):
     """Get the token at a given cursor