src/sage/rings/{{complex,real}_{double,mpfr}.pyx, qqbar.py}: Remove functions deprecated in #32610 (2021)

Author: Matthias Koeppe

src/sage/rings/complex_double.pyx

@@ -116,30 +116,6 @@ cimport gmpy2
 gmpy2.import_gmpy2()
 
 
-def is_ComplexDoubleField(x):
-    """
-    Return ``True`` if ``x`` is the complex double field.
-
-    This function is deprecated. Use :func:`isinstance` with
-    :class:`~sage.rings.abc.ComplexDoubleField` instead.
-
-    EXAMPLES::
-
-        sage: from sage.rings.complex_double import is_ComplexDoubleField
-        sage: is_ComplexDoubleField(CDF)
-        doctest:warning...
-        DeprecationWarning: is_ComplexDoubleField is deprecated;
-        use isinstance(..., sage.rings.abc.ComplexDoubleField) instead
-        See https://github.com/sagemath/sage/issues/32610 for details.
-        True
-        sage: is_ComplexDoubleField(ComplexField(53))
-        False
-    """
-    from sage.misc.superseded import deprecation
-    deprecation(32610, 'is_ComplexDoubleField is deprecated; use isinstance(..., sage.rings.abc.ComplexDoubleField) instead')
-    return isinstance(x, ComplexDoubleField_class)
-
-
 cdef class ComplexDoubleField_class(sage.rings.abc.ComplexDoubleField):
     """
     An approximation to the field of complex numbers using double

src/sage/rings/complex_mpfr.pyx

@@ -157,32 +157,6 @@ def is_ComplexNumber(x):
     return isinstance(x, ComplexNumber)
 
 
-def is_ComplexField(x):
-    """
-    Check if ``x`` is a :class:`complex field <ComplexField_class>`.
-
-    This function is deprecated. Use :func:`isinstance` with
-    :class:`~sage.rings.abc.ComplexField` instead.
-
-    EXAMPLES::
-
-        sage: from sage.rings.complex_mpfr import is_ComplexField as is_CF
-        sage: is_CF(ComplexField())
-        doctest:warning...
-        DeprecationWarning: is_ComplexField is deprecated;
-        use isinstance(..., sage.rings.abc.ComplexField) instead
-        See https://github.com/sagemath/sage/issues/32610 for details.
-        True
-        sage: is_CF(ComplexField(12))
-        True
-        sage: is_CF(CC)
-        True
-    """
-    from sage.misc.superseded import deprecation
-    deprecation(32610, 'is_ComplexField is deprecated; use isinstance(..., sage.rings.abc.ComplexField) instead')
-    return isinstance(x, ComplexField_class)
-
-
 cache = {}
 def ComplexField(prec=53, names=None):
     """

src/sage/rings/qqbar.py

@@ -2113,28 +2113,6 @@ def is_AlgebraicField(F):
 QQbar = AlgebraicField()
 
 
-def is_AlgebraicField_common(F):
-    r"""
-    Check whether ``F`` is an :class:`~AlgebraicField_common` instance.
-
-    This function is deprecated. Use :func:`isinstance` with
-    :class:`~sage.rings.abc.AlgebraicField_common` instead.
-
-    EXAMPLES::
-
-        sage: from sage.rings.qqbar import is_AlgebraicField_common
-        sage: [is_AlgebraicField_common(x) for x in [AA, QQbar, None, 0, "spam"]]
-        doctest:warning...
-        DeprecationWarning: is_AlgebraicField_common is deprecated;
-        use isinstance(..., sage.rings.abc.AlgebraicField_common) instead
-        See https://github.com/sagemath/sage/issues/32610 for details.
-        [True, True, False, False, False]
-    """
-    from sage.misc.superseded import deprecation
-    deprecation(32610, 'is_AlgebraicField_common is deprecated; use isinstance(..., sage.rings.abc.AlgebraicField_common) instead')
-    return isinstance(F, AlgebraicField_common)
-
-
 def prec_seq():
     r"""
     Return a generator object which iterates over an infinite increasing

src/sage/rings/real_double.pyx

@@ -68,30 +68,6 @@ cimport gmpy2
 new_gen_from_real_double_element = None
 
 
-def is_RealDoubleField(x):
-    """
-    Returns ``True`` if ``x`` is the field of real double precision numbers.
-
-    This function is deprecated. Use :func:`isinstance` with
-    :class:`~sage.rings.abc.RealDoubleField` instead.
-
-    EXAMPLES::
-
-        sage: from sage.rings.real_double import is_RealDoubleField
-        sage: is_RealDoubleField(RDF)
-        doctest:warning...
-        DeprecationWarning: is_RealDoubleField is deprecated;
-        use isinstance(..., sage.rings.abc.RealDoubleField) instead
-        See https://github.com/sagemath/sage/issues/32610 for details.
-        True
-        sage: is_RealDoubleField(RealField(53))                                         # needs sage.rings.real_mpfr
-        False
-    """
-    from sage.misc.superseded import deprecation
-    deprecation(32610, 'is_RealDoubleField is deprecated; use isinstance(..., sage.rings.abc.RealDoubleField) instead')
-    return isinstance(x, RealDoubleField_class)
-
-
 cdef class RealDoubleField_class(sage.rings.abc.RealDoubleField):
     """
     An approximation to the field of real numbers using double

src/sage/rings/real_mpfr.pyx

@@ -5912,29 +5912,6 @@ def create_RealNumber(s, int base=10, int pad=0, rnd="RNDN", int min_prec=53):
     return RealLiteral(R, s, base)
 
 
-def is_RealField(x):
-    """
-    Returns ``True`` if ``x`` is technically of a Python real field type.
-
-    This function is deprecated. Use :func:`isinstance` with
-    :class:`~sage.rings.abc.RealField` instead.
-
-    EXAMPLES::
-
-        sage: sage.rings.real_mpfr.is_RealField(RR)
-        doctest:warning...
-        DeprecationWarning: is_RealField is deprecated;
-        use isinstance(..., sage.rings.abc.RealField) instead
-        See https://github.com/sagemath/sage/issues/32610 for details.
-        True
-        sage: sage.rings.real_mpfr.is_RealField(CC)
-        False
-    """
-    from sage.misc.superseded import deprecation
-    deprecation(32610, 'is_RealField is deprecated; use isinstance(..., sage.rings.abc.RealField) instead')
-    return isinstance(x, RealField_class)
-
-
 def is_RealNumber(x):
     """
     Return ``True`` if ``x`` is of type :class:`RealNumber`, meaning that it