def _interface_(self, I):
"""
EXAMPLES::
sage: from sage.symbolic.constants import Constant
sage: p = Constant('p', conversions=dict(maxima='%pi'))
sage: p._interface_(maxima)
%pi
"""
try:
s = self._conversions[I.name()]
return I(s)
except KeyError:
pass
try:
return getattr(self, "_%s_" % (I.name()))(I)
except AttributeError:
pass
raise NotImplementedError
def _interface_(self, I):
"""
EXAMPLES::
sage: from sage.symbolic.constants import Constant
sage: p = Constant('p', conversions=dict(maxima='%pi'))
sage: p._interface_(maxima)
%pi
"""
try:
s = self._conversions[I.name()]
return I(s)
except KeyError:
pass
try:
return getattr(self, "_%s_"%(I.name()))(I)
except AttributeError:
pass
raise NotImplementedError
def _generic_interface(self, value, I):
"""
This is a helper method used in defining the ``_X_`` methods
where ``X`` is the name of some interface.
EXAMPLES::
sage: from sage.symbolic.constants import Constant
sage: p = Constant('p', conversions=dict(maxima='%pi'))
sage: p._maxima_(maxima)
%pi
The above ``_maxima_`` is constructed like ``m`` below::
sage: from functools import partial
sage: m = partial(p._generic_interface, '%pi')
sage: m(maxima)
%pi
"""
return I(value)