changes made to pandas/core/infexes/base.py for is_interval deprecation in class Index

Author: ShisuiUzumaki

pandas/core/indexes/base.py

@@ -89,6 +89,7 @@
     ensure_object,
     ensure_platform_int,
     is_bool_dtype,
+    is_interval_dtype,
     is_categorical_dtype,
     is_complex_dtype,
     is_dtype_equal,
@@ -2205,7 +2206,7 @@ def is_boolean(self) -> bool:
         is_numeric : Check if the Index only consists of numeric data.
         is_object : Check if the Index is of the object dtype.
         is_categorical : Check if the Index holds categorical data.
-        is_interval : Check if the Index holds Interval objects.
+        is_interval : Check if the Index holds Interval objects (deprecated).
 
         Examples
         --------
@@ -2240,7 +2241,7 @@ def is_integer(self) -> bool:
         is_numeric : Check if the Index only consists of numeric data.
         is_object : Check if the Index is of the object dtype.
         is_categorical : Check if the Index holds categorical data.
-        is_interval : Check if the Index holds Interval objects.
+        is_interval : Check if the Index holds Interval objects (deprecated).
 
         Examples
         --------
@@ -2279,7 +2280,7 @@ def is_floating(self) -> bool:
         is_numeric : Check if the Index only consists of numeric data.
         is_object : Check if the Index is of the object dtype.
         is_categorical : Check if the Index holds categorical data.
-        is_interval : Check if the Index holds Interval objects.
+        is_interval : Check if the Index holds Interval objects (deprecated).
 
         Examples
         --------
@@ -2361,7 +2362,7 @@ def is_object(self) -> bool:
         is_floating : Check if the Index is a floating type.
         is_numeric : Check if the Index only consists of numeric data.
         is_categorical : Check if the Index holds categorical data.
-        is_interval : Check if the Index holds Interval objects.
+        is_interval : Check if the Index holds Interval objects (deprecated).
 
         Examples
         --------
@@ -2402,7 +2403,7 @@ def is_categorical(self) -> bool:
         is_floating : Check if the Index is a floating type.
         is_numeric : Check if the Index only consists of numeric data.
         is_object : Check if the Index is of the object dtype.
-        is_interval : Check if the Index holds Interval objects.
+        is_interval : Check if the Index holds Interval objects (deprecated).
 
         Examples
         --------
@@ -2432,6 +2433,9 @@ def is_interval(self) -> bool:
         """
         Check if the Index holds Interval objects.
 
+        .. deprecated:: 2.0.0
+            Use `pandas.api.types.is_interval_dtype` instead.
+
         Returns
         -------
         bool
@@ -2458,6 +2462,12 @@ def is_interval(self) -> bool:
         >>> idx.is_interval()
         False
         """
+        warnings.warn(
+            f"{type(self).__name__}.is_interval is deprecated."
+            "Use pandas.api.types.is_interval_dtype instead",
+            FutureWarning,
+            stacklevel=find_stack_level(),
+        )
         return self.inferred_type in ["interval"]
 
     @final