Issue #10225: Fixed the simple mistakes in doctests.

Doc/library/decimal.rst

@@ -144,7 +144,7 @@ value of that integer or float.  Decimal numbers include special values such as
    >>> Decimal((0, (3, 1, 4), -2))
    Decimal('3.14')
    >>> Decimal(str(2.0 ** 0.5))
-   Decimal('1.41421356237')
+   Decimal('1.4142135623730951')
    >>> Decimal(2) ** Decimal('0.5')
    Decimal('1.414213562373095048801688724')
    >>> Decimal('NaN')

Doc/library/operator.rst

@@ -9,7 +9,7 @@
 .. testsetup::
 
    import operator
-   from operator import itemgetter
+   from operator import itemgetter, iadd
 
 
 The :mod:`operator` module exports a set of functions implemented in C

Doc/library/turtle.rst

@@ -1878,7 +1878,7 @@ Settings and special methods
 
       >>> cv = screen.getcanvas()
       >>> cv
-      <turtle.ScrolledCanvas instance at 0x...>
+      <turtle.ScrolledCanvas object at ...>
 
 
 .. function:: getshapes()