MAINT: Move `InputRejected` to `IPython.core.error`.

IPython/core/error.py

@@ -51,3 +51,10 b' class StdinNotImplementedError(IPythonCoreError, NotImplementedError):'
     For use in IPython kernels, where only some frontends may support
     stdin requests.
     """
+
+class InputRejected(Exception):
+    """Input rejected by ast transformer.
+
+    Raise this in your NodeTransformer to indicate that InteractiveShell should
+    not execute the supplied input.
+    """

IPython/core/interactiveshell.py

@@ -41,7 +41,7 b' from IPython.core.compilerop import CachingCompiler, check_linecache_ipython'
 from IPython.core.display_trap import DisplayTrap
 from IPython.core.displayhook import DisplayHook
 from IPython.core.displaypub import DisplayPublisher
-from IPython.core.error import UsageError
+from IPython.core.error import InputRejected, UsageError
 from IPython.core.extensions import ExtensionManager
 from IPython.core.formatters import DisplayFormatter
 from IPython.core.history import HistoryManager
@@ -54,7 +54,6 b' from IPython.core.profiledir import ProfileDir'
 from IPython.core.prompts import PromptManager
 from IPython.core.usage import default_banner
 from IPython.lib.latextools import LaTeXTool
-from IPython.lib.security import InputRejected
 from IPython.testing.skipdoctest import skip_doctest
 from IPython.utils import PyColorize
 from IPython.utils import io

IPython/core/tests/test_interactiveshell.py

@@ -24,8 +24,8 b' from os.path import join'
 
 import nose.tools as nt
 
+from IPython.core.error import InputRejected
 from IPython.core.inputtransformer import InputTransformer
-from IPython.lib.security import InputRejected
 from IPython.testing.decorators import (
     skipif, skip_win32, onlyif_unicode_paths, onlyif_cmds_exist,
 )

IPython/lib/security.py

@@ -114,13 +114,3 b' def passwd_check(hashed_passphrase, passphrase):'
     h.update(cast_bytes(passphrase, 'utf-8') + cast_bytes(salt, 'ascii'))
 
     return h.hexdigest() == pw_digest
-
-#-----------------------------------------------------------------------------
-# Exception classes
-#-----------------------------------------------------------------------------
-class InputRejected(Exception):
-    """Input rejected by ast transformer.
-
-    To be raised by user-supplied ast.NodeTransformers when an input should not
-    be executed.
-    """