Remove unnecessary `object` base class in docs (#10366).

Also add a note about inheritance from `object` being default.

diff --git a/Doc/includes/mp_newtype.py b/Doc/includes/mp_newtype.py
index d1a55a661c44821d47eb4f9aca2368fca0e8703b..729174363ed55a959a7ca3b9e58147a89f8df328 100644 (file)
--- a/Doc/includes/mp_newtype.py
+++ b/Doc/includes/mp_newtype.py
@@ -12,7 +12,7 @@ import operator
 
 ##
 
-class Foo(object):
+class Foo:
     def f(self):
         print('you called Foo.f()')
     def g(self):

diff --git a/Doc/includes/sqlite3/adapter_point_1.py b/Doc/includes/sqlite3/adapter_point_1.py
index 1343acde3cd19ed5db77903a917f9337936e187b..6b1af8415648a47ccaec42fa872bb3e479fd6f7d 100644 (file)
--- a/Doc/includes/sqlite3/adapter_point_1.py
+++ b/Doc/includes/sqlite3/adapter_point_1.py
@@ -1,6 +1,6 @@
 import sqlite3
 
-class Point(object):
+class Point:
     def __init__(self, x, y):
         self.x, self.y = x, y
 

diff --git a/Doc/includes/sqlite3/adapter_point_2.py b/Doc/includes/sqlite3/adapter_point_2.py
index 1e1719a3cc0216cd94651deb5551d18819ec30a2..d670700f0491b176b76de9d34dedb3e879db3781 100644 (file)
--- a/Doc/includes/sqlite3/adapter_point_2.py
+++ b/Doc/includes/sqlite3/adapter_point_2.py
@@ -1,6 +1,6 @@
 import sqlite3
 
-class Point(object):
+class Point:
     def __init__(self, x, y):
         self.x, self.y = x, y
 

diff --git a/Doc/includes/sqlite3/converter_point.py b/Doc/includes/sqlite3/converter_point.py
index d0707abd2e2cca4fbf3f4f3fe75cafae222fff00..a8861bcf2e8f4e19ee7c8ee99abe16f3b78a053d 100644 (file)
--- a/Doc/includes/sqlite3/converter_point.py
+++ b/Doc/includes/sqlite3/converter_point.py
@@ -1,6 +1,6 @@
 import sqlite3
 
-class Point(object):
+class Point:
     def __init__(self, x, y):
         self.x, self.y = x, y
 

diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 349df002b535325bbfb55ef1d779f6eb95d6cc4a..63b25bb63e86cf297acffaf0065bf91828b500ac 100644 (file)
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -1312,7 +1312,7 @@ already existing object, rather than the newly-created :class:`Namespace` object
 that is normally used.  This can be achieved by specifying the ``namespace=``
 keyword argument::
 
-   >>> class C(object):
+   >>> class C:
    ...     pass
    ...
    >>> c = C()

diff --git a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst
index a8977f8395620e6dba32812583d613b0477abd5b..35874b69ff2e351698b7390f91fa1489d979f464 100644 (file)
--- a/Doc/library/ctypes.rst
+++ b/Doc/library/ctypes.rst
@@ -369,7 +369,7 @@ your own classes be used as function arguments.  :mod:`ctypes` looks for an
 :attr:`_as_parameter_` attribute and uses this as the function argument.  Of
 course, it must be one of integer, string, or bytes::
 
-   >>> class Bottles(object):
+   >>> class Bottles:
    ...     def __init__(self, number):
    ...         self._as_parameter_ = number
    ...

diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 61bf3912b30366f5fb74f156d27ffb5ff1ab90d6..ec01d697027dfd86a07b8b1e86580068033e96b5 100644 (file)
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -259,7 +259,7 @@ are always available.  They are listed here in alphabetical order.
       ['Struct', '__builtins__', '__doc__', '__file__', '__name__',
        '__package__', '_clearcache', 'calcsize', 'error', 'pack', 'pack_into',
        'unpack', 'unpack_from']
-      >>> class Foo(object):
+      >>> class Foo:
       ...     def __dir__(self):
       ...         return ["kan", "ga", "roo"]
       ...
@@ -903,7 +903,7 @@ are always available.  They are listed here in alphabetical order.
    function for setting, and *fdel* a function for del'ing, an attribute.  Typical
    use is to define a managed attribute ``x``::
 
-      class C(object):
+      class C:
           def __init__(self):
               self._x = None
 
@@ -922,7 +922,7 @@ are always available.  They are listed here in alphabetical order.
    property will copy *fget*'s docstring (if it exists).  This makes it possible to
    create read-only properties easily using :func:`property` as a :term:`decorator`::
 
-      class Parrot(object):
+      class Parrot:
           def __init__(self):
               self._voltage = 100000
 
@@ -939,7 +939,7 @@ are always available.  They are listed here in alphabetical order.
    corresponding accessor function set to the decorated function.  This is
    best explained with an example::
 
-      class C(object):
+      class C:
           def __init__(self):
               self._x = None
 
@@ -1243,7 +1243,7 @@ are always available.  They are listed here in alphabetical order.
    attribute.  For example, the following two statements create identical
    :class:`type` objects:
 
-      >>> class X(object):
+      >>> class X:
       ...     a = 1
       ...
       >>> X = type('X', (object,), dict(a=1))

diff --git a/Doc/library/inspect.rst b/Doc/library/inspect.rst
index f81e1572ea0d601e04fb67d9ff6b717faa5fdf3b..4845bcaa04f51eb7d11af0b6f82bc0422175185a 100644 (file)
--- a/Doc/library/inspect.rst
+++ b/Doc/library/inspect.rst
@@ -604,7 +604,7 @@ for arbitrary getset descriptors invoking these may trigger
 code execution::
 
    # example code for resolving the builtin descriptor types
-   class _foo(object):
+   class _foo:
        __slots__ = ['foo']
 
    slot_descriptor = type(_foo.foo)

diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index f66b0c9f0d3509942711b3ef1e71e9f5d479bff1..f612a1c4de196f56f30429bf018a4053fa711cba 100644 (file)
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -322,7 +322,7 @@ loops that truncate the stream.
 
    :func:`groupby` is equivalent to::
 
-      class groupby(object):
+      class groupby:
           # [k for k, g in groupby('AAAABBBCCDAABBB')] --> A B C D A B
           # [list(g) for k, g in groupby('AAAABBBCCD')] --> AAAA BBB CC D
           def __init__(self, iterable, key=None):

diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index d7a37c3f1ae49946efa45ec21457a608c15a8100..a52824f24f9a66f4efbac1cd650ef60b511db0b8 100644 (file)
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -1334,7 +1334,7 @@ callables with the manager class.  For example::
 
    from multiprocessing.managers import BaseManager
 
-   class MathsClass(object):
+   class MathsClass:
        def add(self, x, y):
            return x + y
        def mul(self, x, y):

diff --git a/Doc/library/sqlite3.rst b/Doc/library/sqlite3.rst
index 9aa7b385a2430c0c6ea8aa8783ac913329c50049..3cad148742c6c986f61599ad197b27c3f605f3de 100644 (file)
--- a/Doc/library/sqlite3.rst
+++ b/Doc/library/sqlite3.rst
@@ -710,7 +710,7 @@ Letting your object adapt itself
 This is a good approach if you write the class yourself. Let's suppose you have
 a class like this::
 
-   class Point(object):
+   class Point:
        def __init__(self, x, y):
            self.x, self.y = x, y
 

diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst
index 95d5705602c97d573a2a6a8b16861999fb501606..162213380cd68b74d502c62c90afe4f1b9ce30e8 100644 (file)
--- a/Doc/reference/compound_stmts.rst
+++ b/Doc/reference/compound_stmts.rst
@@ -561,7 +561,16 @@ A class definition defines a class object (see section :ref:`types`):
 A class definition is an executable statement.  The inheritance list usually
 gives a list of base classes (see :ref:`metaclasses` for more advanced uses), so
 each item in the list should evaluate to a class object which allows
-subclassing.
+subclassing.  Classes without an inheritance list inherit, by default, from the
+base class :class:`object`; hence, ::
+
+   class Foo:
+       pass
+
+is equivalent to ::
+
+   class Foo(object):
+       pass
 
 The class's suite is then executed in a new execution frame (see :ref:`naming`),
 using a newly created local namespace and the original global namespace.

diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 783259c451bc2b1a962e8587225ffd12ed1c1ed6..adedefc99c0fb5630e131c9b5248e52be89fa948 100644 (file)
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1987,7 +1987,7 @@ to work correctly if defined on an object's type, not in the object's instance
 dictionary.  That behaviour is the reason why the following code raises an
 exception::
 
-   >>> class C(object):
+   >>> class C:
    ...     pass
    ...
    >>> c = C()