Features for testing the presence of mcqd

class sage.features.mcqd.Mcqd(*args, **kwds)

Bases: BuildModule

A Feature describing the presence of the mcqd module, which is the SageMath interface to the mcqd library

EXAMPLES:

Sage

sage: from sage.features.mcqd import Mcqd
sage: Mcqd().is_present()  # needs mcqd
FeatureTestResult('mcqd', True)
sage: Mcqd().is_present()  # needs !mcqd
FeatureTestResult('mcqd', False)

Python

>>> from sage.all import *
>>> from sage.features.mcqd import Mcqd
>>> Mcqd().is_present()  # needs mcqd
FeatureTestResult('mcqd', True)
>>> Mcqd().is_present()  # needs !mcqd
FeatureTestResult('mcqd', False)

Sage Live

from sage.features.mcqd import Mcqd
Mcqd().is_present()  # needs mcqd
Mcqd().is_present()  # needs !mcqd

A runtime check. We only check the “present” case because, if feature checks are _not_ deferred, the needs !mcqd can be satisfied (disabled at build time) at the same time we are able to import a module that was installed for a previous build of sage:

Sage

sage: from sage.features.mcqd import Mcqd
sage: Mcqd().is_present_at_runtime()  # needs mcqd
FeatureTestResult('mcqd', True)

Python

>>> from sage.all import *
>>> from sage.features.mcqd import Mcqd
>>> Mcqd().is_present_at_runtime()  # needs mcqd
FeatureTestResult('mcqd', True)

Sage Live

from sage.features.mcqd import Mcqd
Mcqd().is_present_at_runtime()  # needs mcqd

sage.features.mcqd.all_features()

Make live