ó ¡¼™\c@sdZddlmZdS(sè Unified place for determining if external dependencies are installed or not. You should import all external modules using the import_module() function. For example >>> from sympy.external import import_module >>> numpy = import_module('numpy') If the resulting library is not installed, or if the installed version is less than a given minimum version, the function will return None. Otherwise, it will return the library. See the docstring of import_module() for more information. iÿÿÿÿ(t import_moduleN(t__doc__tsympy.external.importtoolsR(((s6lib/python2.7/site-packages/sympy/external/__init__.pyts