Use black with -l 120 param.

gns3server/controller/controller_error.py

@@ -17,7 +17,6 @@
 
 
 class ControllerError(Exception):
-
     def __init__(self, message: str):
         super().__init__()
         self._message = message
@@ -30,30 +29,25 @@ class ControllerError(Exception):
 
 
 class ControllerNotFoundError(ControllerError):
-
     def __init__(self, message: str):
         super().__init__(message)
 
 
 class ControllerBadRequestError(ControllerError):
-
     def __init__(self, message: str):
         super().__init__(message)
 
 
 class ControllerUnauthorizedError(ControllerError):
-
     def __init__(self, message: str):
         super().__init__(message)
 
 
 class ControllerForbiddenError(ControllerError):
-
     def __init__(self, message: str):
         super().__init__(message)
 
 
 class ControllerTimeoutError(ControllerError):
-
     def __init__(self, message: str):
         super().__init__(message)