Feature for testing the presence of meataxe

class sage.features.meataxe.Meataxe(*args, **kwds)[source]

Bases: BuildModule

A Feature describing the presence of the Sage modules that depend on the meataxe library.

EXAMPLES:

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

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

from sage.features.meataxe import Meataxe
Meataxe().is_present()  # needs meataxe
Meataxe().is_present()  # needs !meataxe

A runtime check. We only check the “present” case because, if feature checks are _not_ deferred, the needs !meataxe 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: from sage.features.meataxe import Meataxe
sage: Meataxe().is_present_at_runtime()  # needs meataxe
FeatureTestResult('meataxe', True)

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

from sage.features.meataxe import Meataxe
Meataxe().is_present_at_runtime()  # needs meataxe
sage.features.meataxe.all_features()[source]