Convert matplotlib gui name in enable_gui

IPython/core/tests/test_interactiveshell.py

@@ -27,7 +27,11 b' from IPython.core.inputtransformer import InputTransformer'
 from IPython.core import interactiveshell
 from IPython.core.oinspect import OInfo
 from IPython.testing.decorators import (
-    skipif, skip_win32, onlyif_unicode_paths, onlyif_cmds_exist,
+    skipif,
+    skip_win32,
+    onlyif_unicode_paths,
+    onlyif_cmds_exist,
+    skip_if_not_osx,
 )
 from IPython.testing import tools as tt
 from IPython.utils.process import find_cmd
@@ -144,7 +148,6 b' class InteractiveShellTestCase(unittest.TestCase):'
         f = IPython.core.formatters.PlainTextFormatter()
         f([Spam(),Spam()])
     
-
     def test_future_flags(self):
         """Check that future flags are used for parsing code (gh-777)"""
         ip.run_cell('from __future__ import barry_as_FLUFL')
@@ -1199,3 +1202,20 b' class TestShowTracebackAttack(unittest.TestCase):'
         assert result.result is None
         assert isinstance(result.error_in_exec, AssertionError)
         assert str(result.error_in_exec) == "This should not raise an exception"
+
+
+@skip_if_not_osx
+def test_enable_gui_osx():
+    simple_prompt = ip.simple_prompt
+    ip.simple_prompt = False
+
+    ip.enable_gui("osx")
+    assert ip.active_eventloop == "osx"
+    ip.enable_gui()
+
+    # The following line fails for IPython <= 8.25.0
+    ip.enable_gui("macosx")
+    assert ip.active_eventloop == "osx"
+    ip.enable_gui()
+
+    ip.simple_prompt = simple_prompt

IPython/terminal/interactiveshell.py

@@ -943,6 +943,11 b' class TerminalInteractiveShell(InteractiveShell):'
     active_eventloop: Optional[str] = None
 
     def enable_gui(self, gui: Optional[str] = None) -> None:
+        if gui:
+            from ..core.pylabtools import _convert_gui_from_matplotlib
+
+            gui = _convert_gui_from_matplotlib(gui)
+
         if self.simple_prompt is True and gui is not None:
             print(
                 f'Cannot install event loop hook for "{gui}" when running with `--simple-prompt`.'

IPython/testing/decorators.py

@@ -147,10 +147,13 b' skip_osx = skipif(sys.platform == \'darwin\',"This test does not run under OS X")'
 
 
 # Decorators to skip tests if not on specific platforms.
-skip_if_not_win32 = skipif(sys.platform != 'win32',
-                           "This test only runs under Windows")
-skip_if_not_linux = skipif(not sys.platform.startswith('linux'),
-                           "This test only runs under Linux")
+skip_if_not_win32 = skipif(sys.platform != "win32", "This test only runs under Windows")
+skip_if_not_linux = skipif(
+    not sys.platform.startswith("linux"), "This test only runs under Linux"
+)
+skip_if_not_osx = skipif(
+    not sys.platform.startswith("darwin"), "This test only runs under macOS"
+)
 
 _x11_skip_cond = (sys.platform not in ('darwin', 'win32') and
                   os.environ.get('DISPLAY', '') == '')