B Çä˜\¸ã@s0dZddlZddlZdd„Zdd„Zdd„ZdS) z:A fancy version of Python's builtin :func:`dir` function. éNcCsyt||ƒdSdSdS)zfIn recent versions of Python, hasattr() only catches AttributeError. This catches all errors. TFN)Úgetattr)ÚobjÚattr©rú1lib/python3.7/site-packages/IPython/utils/dir2.pyÚ safe_hasattr s  rcCs^ytt|ƒƒ}Wntk r*tƒ}YnXt|dƒrH|tt|jƒƒO}dd„|Dƒ}t|ƒS)avdir2(obj) -> list of strings Extended version of the Python builtin dir(), which does a few extra checks. This version is guaranteed to return only a list of true strings, whereas dir() returns anything that objects inject into themselves, even if they are later not really valid for attribute access (many extension libraries have such bugs). Ú __class__cSsg|]}t|tƒr|‘qSr)Ú isinstanceÚstr)Ú.0Úwrrrú 2szdir2..)ÚsetÚdirÚ ExceptionrrÚsorted)rZwordsrrrÚdir2s  rcCs‚yt|ddƒ}Wntk r$dSX|dk r2dSyt||dƒ}Wntk rVdSXt |¡rrt|tjƒsrdSt|ƒr~|SdS)aELike getattr, but with a few extra sanity checks: - If obj is a class, ignore everything except class methods - Check if obj is a proxy that claims to have all attributes - Catch attribute access failing with any exception - Check that the attribute is a callable object Returns the method or None. Z(_ipython_canary_method_should_not_exist_N)rrÚinspectZisclassr ÚtypesÚ MethodTypeÚcallable)rÚnameZcanaryÚmrrrÚget_real_method6s r)Ú__doc__rrrrrrrrrÚs