Fix crash when a slice object is called

Author: zenlyj

doc/whatsnew/fragments/10708.bugfix

@@ -0,0 +1,4 @@
+Fix crash for ``prefer-typing-namedtuple`` and ``consider-math-not-float`` when
+a ``slice`` object is called.
+
+Closes #10708

pylint/extensions/code_style.py

@@ -10,7 +10,10 @@
 from astroid import nodes
 
 from pylint.checkers import BaseChecker, utils
-from pylint.checkers.utils import only_required_for_messages, safe_infer
+from pylint.checkers.utils import (
+    only_required_for_messages,
+    safe_infer,
+)
 from pylint.interfaces import INFERENCE
 
 if TYPE_CHECKING:
@@ -113,7 +116,9 @@ def open(self) -> None:
     def visit_call(self, node: nodes.Call) -> None:
         if self._py36_plus:
             called = safe_infer(node.func)
-            if not called:
+            if not called or not isinstance(
+                called, (nodes.FunctionDef, nodes.ClassDef)
+            ):
                 return
             if called.qname() == "collections.namedtuple":
                 self.add_message(

tests/functional/ext/code_style/cs_prefer_typing_namedtuple.py

@@ -7,3 +7,8 @@ class SearchMatch(
     namedtuple('SearchMatch', ['els', 'index', 'iterator'])  # [prefer-typing-namedtuple]
 ):
     """Adapted from primer package `music21`."""
+
+
+# Regression test for https://github.com/pylint-dev/pylint/issues/10708
+x = slice(42)
+x()  # pylint: disable=not-callable

tests/functional/ext/code_style/cs_use_math_not_float.py

@@ -16,3 +16,8 @@
 upper_nan_float = float("NaN")  # [consider-math-not-float]
 typo_nan_float = float("nani")  # [consider-math-not-float]
 other_typo_nan_float = float("nna")  # [consider-math-not-float]
+
+
+# Regression test for https://github.com/pylint-dev/pylint/issues/10708
+x = slice(42)
+x()  # pylint: disable=not-callable