diff --git a/spyder_kernels/console/tests/test_console_kernel.py b/spyder_kernels/console/tests/test_console_kernel.py
index ceda7c3f..065b53a1 100644
--- a/spyder_kernels/console/tests/test_console_kernel.py
+++ b/spyder_kernels/console/tests/test_console_kernel.py
@@ -687,8 +687,8 @@ def test_runfile(tmpdir):
         u.write(code)
 
         # Run code file `d` to define `result` even after an error
-        client.execute_interactive("%runfile {}"
-                                  .format(repr(str(d))), timeout=TIMEOUT)
+        client.execute_interactive(
+            "%runfile {}".format(repr(str(d))), timeout=TIMEOUT)
 
         # Verify that `result` is defined in the current namespace
         client.inspect('result')
@@ -699,8 +699,8 @@ def test_runfile(tmpdir):
         assert content['found']
 
         # Run code file `u` without current namespace
-        client.execute_interactive("%runfile {}"
-                                  .format(repr(str(u))), timeout=TIMEOUT)
+        client.execute_interactive(
+            "%runfile {}".format(repr(str(u))), timeout=TIMEOUT)
 
         # Verify that the variable `result2` is defined
         client.inspect('result2')
diff --git a/spyder_kernels/customize/code_runner.py b/spyder_kernels/customize/code_runner.py
index 35cd59a6..98e57b2a 100644
--- a/spyder_kernels/customize/code_runner.py
+++ b/spyder_kernels/customize/code_runner.py
@@ -60,13 +60,13 @@ def runfile_arguments(func):
         magic_arguments.argument(
             "filename",
             help="""
-            filename to run
+            Filename to run
             """,
         ),
         magic_arguments.argument(
             "--args",
             help="""
-            command line arguments (string)
+            Command line arguments (string)
             """,
         ),
         magic_arguments.argument(
@@ -74,27 +74,27 @@ def runfile_arguments(func):
             const=True,
             nargs="?",
             help="""
-            working directory
+            Working directory
             """,
         ),
         magic_arguments.argument(
             "--post-mortem",
             action="store_true",
             help="""
-            enter post-mortem mode on error
+            Enter post-mortem mode on errors
             """,
         ),
         magic_arguments.argument(
             "--current-namespace",
             action="store_true",
             help="""
-            use current namespace
+            Use current namespace
             """,
         ),
         magic_arguments.argument(
             "--namespace",
             help="""
-            namespace to run the file in
+            Namespace to run the file in
             """,
         )
         ]
@@ -123,7 +123,7 @@ def runcell_arguments(func):
             "filename",
             nargs="?",
             help="""
-            filename
+            Filename
             """,
         ),
         magic_arguments.argument(
@@ -131,7 +131,7 @@ def runcell_arguments(func):
             action="store_true",
             default=False,
             help="""
-            Automatically enter post mortem on exception.
+            Enter post-mortem mode on errors
             """,
         )
         ]
@@ -663,11 +663,12 @@ def _post_mortem_excepthook(self, type, value, tb):
     
     def _parse_argstring(self, magic_func, argstring):
         """
-        Parse a string of arguments for a magic function
+        Parse a string of arguments for a magic function.
 
         This is needed because magic_arguments.parse_argstring does
-        plateform-dependent things with quotes and backslahes
-        e.g. on windows, string are removed and backslahes are escaped
+        platform-dependent things with quotes and backslashes. For
+        example, on Windows, strings are removed and backslashes are
+        escaped.
         """
         argv = shlex.split(argstring)
         args = magic_func.parser.parse_args(argv)
@@ -677,14 +678,11 @@ def _parse_argstring(self, magic_func, argstring):
         return args
     
     def _parse_runfile_argstring(self, magic_func, argstring, local_ns):
-        """
-        Parse a string for runfile
-        """
+        """Parse an args string for runfile and debugfile."""
         args = self._parse_argstring(magic_func, argstring)
         if args.namespace is None:
             args.namespace = self.shell.user_ns
         else:
-            
             if local_ns is not None and args.namespace in local_ns:
                 args.namespace = local_ns[args.namespace]
             elif args.namespace in self.shell.user_ns:
@@ -698,11 +696,9 @@ def _parse_runfile_argstring(self, magic_func, argstring, local_ns):
         return args, local_ns
 
     def _parse_runcell_argstring(self, magic_func, argstring):
-        """
-        Parse a sting for runcell
-        """
+        """Parse an args string for runcell and debugcell."""
         args = self._parse_argstring(magic_func, argstring)
         args.cell_id = args.name
         if args.cell_id is None:
             args.cell_id = int(args.index)
-        return args
\ No newline at end of file
+        return args