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Provide information about optional dependencies. This class should not be instantiated, it serves as a namespace for dependency information. This information is encoded as a series of attributes called ``has_<dependency>``. Dependency parameters are object which have a a boolean value (``True`` if the dependency is available). If False, they contain an error string which will be used in ``mdp.config.info()`` output. If ``True``, they contain information about the available version of the dependency. Those objects should be created by using the helper class methods `ExternalDepFound` and `ExternalDepFailed`. >>> bool(config.has_python) True Dependency parameters are numbered in the order of creation, so the output is predictable. The selection of the numerical backend (`numpy` or `scipy`) can be forced by setting the environment variable MDPNUMX. The loading of an optional dependency can be inhibited by setting the environment variables ``MDP_DISABLE_<DEPNAME>`` to a non-empty value. The following variables are defined: ``MDPNUMX`` either ``numpy`` or ``scipy``. By default the latter is used if available. ``MDP_DISABLE_PARALLEL_PYTHON`` inhibit loading of `mdp.parallel` based on parallel python (module ``pp``) ``MDP_DISABLE_SHOGUN`` inhibit loading of the shogun classifier ``MDP_DISABLE_LIBSVM`` inhibit loading of the svm classifier ``MDP_DISABLE_JOBLIB`` inhibit loading of the ``joblib`` module and `mdp.caching` ``MDP_DISABLE_SKLEARN`` inhibit loading of the ``sklearn`` module ``MDPNSDEBUG`` print debugging information during the import process ``MDP_PP_SECRET`` set parallel python (pp) secret. If not set, and no secret is known to pp, a default secret will be used. ``MDP_DISABLE_MONKEYPATCH_PP`` disable automatic monkeypatching of parallel python worker script, otherwise a work around for debian bug #620551 is activated.
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_ExternalDep |
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Inherited from |
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_HAS_NUMBER = 9
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has_joblib = 0.11
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has_libsvm = libsvm.so.2
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has_mdp = 3.5
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has_numx = scipy 0.19.1
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has_parallel_python = NOT AVAILABLE: No module named pp
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has_python = 2.7.13.final.0
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has_shogun = NOT AVAILABLE: No module named shogun
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has_sklearn = NOT AVAILABLE: No module named scikits.learn
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has_symeig = scipy.linalg.eigh
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Inform that an optional dependency was not found. A new `_ExternalDep` object will be created and stored in `config`. :Parameters: name identifier of the optional dependency. This should be a valid python identifier, because it will be accessible as ``mdp.config.has_<name>`` attribute. failmsg an object convertible to ``str``, which will be displayed in ``mdp.config.info()`` output. This will usually be either an exception (e.g. ``ImportError``), or a message string. |
Inform that an optional dependency was found. A new `_ExternalDep` object will be created and stored in `config`. :Parameters: name identifier of the optional dependency. This should be a valid python identifier, because it will be accessible as ``mdp.config.has_<name>`` attribute. version an object convertible to ``str``, which will be displayed in ``mdp.config.info()`` output. Something like ``'0.4.3'``. |
Return nicely formatted info about MDP. >>> print mdp.config.info() # doctest: +SKIP python: 2.7.2.final.0 mdp: 3.3, MDP-3.2-9-g4bc7356+ parallel python: 1.6.1-monkey-patched shogun: v1.1.0_02ce3cd_2011-12-12_08:17_ libsvm: libsvm.so.3 joblib: 0.5.4 sklearn: 0.9 numx: scipy 0.9.0 symeig: scipy.linalg.eigh This function is used to provide the py.test report header and footer. |
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_HAS_NUMBER
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has_joblib
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has_libsvm
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has_mdp
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has_numx
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has_parallel_python
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has_python
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has_shogun
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has_sklearn
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has_symeig
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