drop 3.11

ipython · Carreau · Feb 11, 2026 · Feb 2, 2026 · Feb 2, 2026 · Feb 2, 2026
commit 4b981b44b0cae89a4f8211fa7c6aca5842f94050
diff --git a/IPython/__init__.py b/IPython/__init__.py
@@ -27,13 +27,13 @@
 #-----------------------------------------------------------------------------
 
 # Don't forget to also update setup.py when this changes!
-if sys.version_info < (3, 11):
+if sys.version_info < (3, 12):
     raise ImportError(
         """
+IPython 9.x supports Python 3.12 and above, following SPEC0
 IPython 8.31+ supports Python 3.11 and above, following SPEC0
 IPython 8.19+ supports Python 3.10 and above, following SPEC0.
 IPython 8.13+ supports Python 3.9 and above, following NEP 29.
-IPython 8.0-8.12 supports Python 3.8 and above, following NEP 29.
 When using Python 2.7, please install IPython 5.x LTS Long Term Support version.
 Python 3.3 and 3.4 were supported up to IPython 6.x.
 Python 3.5 was supported with IPython 7.0 to 7.9.

diff --git a/IPython/core/completer.py b/IPython/core/completer.py
@@ -243,11 +243,7 @@
 
 from typing import cast
 
-if sys.version_info < (3, 12):
-    from typing_extensions import TypedDict, Protocol
-    from typing import NotRequired, TypeAlias, TypeGuard
-else:
-    from typing import TypedDict, NotRequired, Protocol, TypeAlias, TypeGuard
+from typing import TypedDict, NotRequired, Protocol, TypeAlias, TypeGuard
 
 
 # skip module docstests

diff --git a/IPython/core/guarded_eval.py b/IPython/core/guarded_eval.py
@@ -32,10 +32,7 @@
 import types
 from typing import Self, LiteralString, get_type_hints
 
-if sys.version_info < (3, 12):
-    from typing_extensions import TypeAliasType
-else:
-    from typing import TypeAliasType
+from typing import TypeAliasType
 
 
 @undoc

diff --git a/IPython/core/inputtransformer2.py b/IPython/core/inputtransformer2.py
@@ -356,24 +356,8 @@ def transform(self, lines: List[str]):
 class SystemAssign(TokenTransformBase):
     """Transformer for assignments from system commands (a = !foo)"""
     @classmethod
-    def find_pre_312(cls, tokens_by_line):
-        for line in tokens_by_line:
-            assign_ix = _find_assign_op(line)
-            if (assign_ix is not None) \
-                    and not line[assign_ix].line.strip().startswith('=') \
-                    and (len(line) >= assign_ix + 2) \
-                    and (line[assign_ix + 1].type == tokenize.ERRORTOKEN):
-                ix = assign_ix + 1
-
-                while ix < len(line) and line[ix].type == tokenize.ERRORTOKEN:
-                    if line[ix].string == '!':
-                        return cls(line[ix].start)
-                    elif not line[ix].string.isspace():
-                        break
-                    ix += 1
-
-    @classmethod
-    def find_post_312(cls, tokens_by_line):
+    def find(cls, tokens_by_line):
+        """Find the first system assignment (a = !foo) in the cell."""
         for line in tokens_by_line:
             assign_ix = _find_assign_op(line)
             if (
@@ -385,13 +369,6 @@ def find_post_312(cls, tokens_by_line):
             ):
                 return cls(line[assign_ix + 1].start)
 
-    @classmethod
-    def find(cls, tokens_by_line):
-        """Find the first system assignment (a = !foo) in the cell."""
-        if sys.version_info < (3, 12):
-            return cls.find_pre_312(tokens_by_line)
-        return cls.find_post_312(tokens_by_line)
-
     def transform(self, lines: List[str]):
         """Transform a system assignment found by the ``find()`` classmethod.
         """

diff --git a/IPython/core/interactiveshell.py b/IPython/core/interactiveshell.py
@@ -2118,8 +2118,7 @@ def _get_exc_info(self, exc_tuple=None):
         sys.last_type = etype
         sys.last_value = value
         sys.last_traceback = tb
-        if sys.version_info >= (3, 12):
-            sys.last_exc = value
+        sys.last_exc = value
 
         return etype, value, tb
 

diff --git a/IPython/core/ultratb.py b/IPython/core/ultratb.py
@@ -961,11 +961,7 @@ def debugger(self, force: bool = False) -> None:
                 self.pdb.botframe = etb.tb_frame
                 # last_value should be deprecated, but last-exc sometimme not set
                 # please check why later and remove the getattr.
-                exc = (
-                    sys.last_value
-                    if sys.version_info < (3, 12)
-                    else getattr(sys, "last_exc", sys.last_value)
-                )  # type: ignore[attr-defined]
+                exc = getattr(sys, "last_exc", sys.last_value)
                 if exc:
                     self.pdb.interaction(None, exc)
                 else:

diff --git a/IPython/utils/text.py b/IPython/utils/text.py
@@ -28,10 +28,7 @@
 )
 from collections.abc import Sequence, Mapping, Callable, Iterator
 
-if sys.version_info < (3, 12):
-    from typing import Self
-else:
-    from typing import Self
+from typing import Self
 
 
 class LSString(str):

diff --git a/setup.py b/setup.py
@@ -23,19 +23,6 @@
 #
 # This check is also made in IPython/__init__, don't forget to update both when
 # changing Python version requirements.
-if sys.version_info < (3, 11):
-    pip_message = 'This may be due to an out of date pip. Make sure you have pip >= 9.0.1.'
-    try:
-        import pip
-        pip_version = tuple([int(x) for x in pip.__version__.split('.')[:3]])
-        if pip_version < (9, 0, 1) :
-            pip_message = 'Your pip version is out of date, please install pip >= 9.0.1. '\
-            'pip {} detected.'.format(pip.__version__)
-        else:
-            # pip is new enough - it must be something else
-            pip_message = ''
-    except Exception:
-        pass
 
 
     error = """

diff --git a/tests/test_guarded_eval.py b/tests/test_guarded_eval.py
@@ -32,10 +32,7 @@
 
 from typing import Self, LiteralString
 
-if sys.version_info < (3, 12):
-    from typing_extensions import TypeAliasType
-else:
-    from typing import TypeAliasType
+from typing import TypeAliasType
 
 
 def create_context(evaluation: str, **kwargs):

diff --git a/tests/test_zzz_autoreload.py b/tests/test_zzz_autoreload.py
@@ -396,8 +396,7 @@ class TestEnum(Enum):
         self.shell.run_code("assert func2() == 'changed'")
         self.shell.run_code("t = Test(); assert t.new_func() == 'changed'")
         self.shell.run_code("assert number == 1")
-        if sys.version_info < (3, 12):
-            self.shell.run_code("assert TestEnum.B.value == 'added'")
+        self.shell.run_code("assert TestEnum.B.value == 'added'")
-        self.shell.run_code("assert TestEnum.B.value == 'added'")
-        self.shell.run_code("assert TestEnum.B.value == 'added'")
 
         # ----------- TEST IMPORT FROM MODULE --------------------------