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src/sage/features/giac.py: add new feature for the giac program #38672

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src/sage/features/giac.py: add new feature for the giac program #38672

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30 changes: 30 additions & 0 deletions src/sage/features/giac.py
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# sage_setup: distribution = sagemath-environment
r"""
Feature for testing the presence of ``giac``
"""

from . import Executable, FeatureTestResult

class Giac(Executable):
r"""
A :class:`~sage.features.Feature` describing the presence of :ref:`giac <spkg_giac>`.

EXAMPLES::

sage: from sage.features.giac import Giac
sage: Giac().is_present() # needs giac
FeatureTestResult('giac', True)
"""
def __init__(self):
r"""
TESTS::

sage: from sage.features.giac import Giac
sage: isinstance(Giac(), Giac)
True
"""
Executable.__init__(self, 'giac', executable='giac',
spkg='giac', type='standard')

def all_features():
return [Giac()]
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