U Zʹj@sfdZddlZddlZdZdZddZer2dZdZedejZddZ ddddd did fd d Z dS) z4Tools to assist importing optional external modules.NcCs4ddl}|dd}|dkr$t|Std|dS)NrZ SYMPY_DEBUGFalse)Truerz&unrecognized value for SYMPY_DEBUG: %s)osgetenveval RuntimeError)rZ debug_strrY/var/www/html/bwave/python/venv/lib/python3.8/site-packages/sympy/external/importtools.py __sympy_debugs r Tz(\d+ | [a-z]+ | \.)c CsTg}t|D]<}|r|dkrz t|}Wntk r>YnX||qt|S)N.) _component_resplitint ValueErrorappendtuple)Zvstring componentsxrrr version_tuple!s   r __version__rc  Cstdk r tn|pd}tdk r tn|p&d}ddl} |rjtj|krj|rf| jd|dtt|ft dddSzHt |f|} | d d } | D]&} | d kr| j d krt |d| qWnvt k r|r| jd |t ddYdS|k r(} z*|r| jd|t| fddWYdSd} ~ XYnX|rt| |}|dk rL||}t|t|kr|rt|trv|}n*t|ttfrdtt|}nt|}| jd||ft dddS| S)a Import and return a module if it is installed. If the module is not installed, it returns None. A minimum version for the module can be given as the keyword argument min_module_version. This should be comparable against the module version. By default, module.__version__ is used to get the module version. To override this, set the module_version_attr keyword argument. If the attribute of the module to get the version should be called (e.g., module.version()), then set module_version_attr_call_args to the args such that module.module_version_attr(*module_version_attr_call_args) returns the module's version. If the module version is less than min_module_version using the Python < comparison, None will be returned, even if the module is installed. You can use this to keep from importing an incompatible older version of a module. You can also specify a minimum Python version by using the min_python_version keyword argument. This should be comparable against sys.version_info. If the keyword argument warn_not_installed is set to True, the function will emit a UserWarning when the module is not installed. If the keyword argument warn_old_version is set to True, the function will emit a UserWarning when the library is installed, but cannot be imported because of the min_module_version or min_python_version options. Note that because of the way warnings are handled, a warning will be emitted for each module only once. You can change the default warning behavior by overriding the values of WARN_NOT_INSTALLED and WARN_OLD_VERSION in sympy.external.importtools. By default, WARN_NOT_INSTALLED is False and WARN_OLD_VERSION is True. This function uses __import__() to import the module. To pass additional options to __import__(), use the import_kwargs keyword argument. For example, to import a submodule A.B, you must pass a nonempty fromlist option to __import__. See the docstring of __import__(). This catches ImportError to determine if the module is not installed. To catch additional errors, pass them as a tuple to the catch keyword argument. Examples ======== >>> from sympy.external import import_module >>> numpy = import_module('numpy') >>> numpy = import_module('numpy', min_python_version=(2, 7), ... warn_old_version=False) >>> numpy = import_module('numpy', min_module_version='1.5', ... warn_old_version=False) # numpy.__version__ is a string >>> # gmpy does not have __version__, but it does have gmpy.version() >>> gmpy = import_module('gmpy', min_module_version='1.14', ... module_version_attr='version', module_version_attr_call_args=(), ... warn_old_version=False) >>> # To import a submodule, you must pass a nonempty fromlist to >>> # __import__(). The values do not matter. >>> p3 = import_module('mpl_toolkits.mplot3d', ... import_kwargs={'fromlist':['something']}) >>> # matplotlib.pyplot can raise RuntimeError when the display cannot be opened >>> matplotlib = import_module('matplotlib', ... import_kwargs={'fromlist':['pyplot']}, catch=(RuntimeError,)) NTFrz:Python version is too old to use %s (%s or newer required)r ) stacklevelfromlistr collectionsZ matplotlibz%s module is not installedz %s module could not be used (%s)z3%s version is too old to use (%s or newer required))WARN_OLD_VERSIONWARN_NOT_INSTALLEDwarningssys version_infowarnjoinmapstr UserWarning __import__get__name__ ImportErrorreprgetattrr isinstancerlist)moduleZmin_module_versionZmin_python_versionZwarn_not_installedZwarn_old_versionZmodule_version_attrZmodule_version_attr_call_argsZ import_kwargsZcatchrmod from_listZsubmodeZ modversionZverstrrrr import_module0srO         r0) __doc__rrerrr compileVERBOSEr rr0rrrr s$