Run darker as instructed

IPython/core/interactiveshell.py

@@ -213,7 +213,9 b' class ExecutionInfo(object):'
         raw_cell = (
             (self.raw_cell[:50] + "..") if len(self.raw_cell) > 50 else self.raw_cell
         )
-        return '<%s object at %x, raw_cell="%s" store_history=%s silent=%s shell_futures=%s cell_id=%s>' % (
+        return (
+            '<%s object at %x, raw_cell="%s" store_history=%s silent=%s shell_futures=%s cell_id=%s>'
+            % (
             name,
             id(self),
             raw_cell,
@@ -222,6 +224,7 b' class ExecutionInfo(object):'
             self.shell_futures,
             self.cell_id,
         )
+        )
 
 
 class ExecutionResult(object):

IPython/utils/path.py

@@ -85,11 +85,11 b' def get_py_filename(name):'
     name = os.path.expanduser(name)
     if os.path.isfile(name):
         return name
-    if not name.endswith('.py'):
-        py_name = name + '.py'
+    if not name.endswith(".py"):
+        py_name = name + ".py"
         if os.path.isfile(py_name):
             return py_name
-    raise IOError('File `%r` not found.' % name)
+    raise IOError("File `%r` not found." % name)
 
 
 def filefind(filename: str, path_dirs=None) -> str: