@j PddlZddlZddlmZdZdedefdZdefdZ dZ d Z dS) Nwrapsc |tjvr|Stj|d}gd}gd}||vrdS||vrtd|d|d||zdS) z-Check if environment varable has True-y value0)1trueTRUEonONyesYES)rfalseFALSEoffOFFnoNOTz'Unexpected environment variable value `=z`. Expected one of F)osenvironget RuntimeError)vardefaultvaltruesfalsess RC:\Projects\Historical\venv\Lib\site-packages\torchaudio/_internal/module_utils.pyeval_envrs "* *..c " "C ; ; ;E > > >F e||t & 0c 0 0C 0 0$v~ 0 011 1 5modulesreturnc4td|DS)aPReturns if a top-level module with :attr:`name` exists *without** importing it. This is generally safer than try-catch block around a `import X`. It avoids third party libraries breaking assumptions of some of our tests, e.g., setting multiprocessing start method when imported (see librosa/#747, torchvision/#544). c3XK|]%}tj|duV&dSN) importlibutil find_spec.0ms r z&is_module_available.. s7HH1y~''**$6HHHHHHr )all)r!s ris_module_availabler.s! HHHHH H HHr c|d|D}|sd}n(t|dkr d|dnd|fd}|S)zDecorate function to give error message if invoked without required optional modules. This decorator is to give better error message to users rather than raising ``NameError: name 'module' is not defined`` at random places. c0g|]}t||S)r.r)s r z#requires_module..)s&@@@Q).decorator-sKr zmodule: rz modules: c@tfd}|S)NcFtjdjd)N.z requires r __module____name__)argskwargsr5reqs rwrappedz3requires_module..decorator..wrapped4s,"do#V#V #V#VQT#V#VWWWr r)r5rAr@s` rr6z"requires_module..decorator3s? 4[[ X X X X X[ XNr )len)r!missingr6r@s @rrequires_modulerD#s A@'@@@G      *-W):):%%%%@UG@U@U      r cfd}|S)zLGenerate decorator to give users message about missing TorchAudio extension.c@tfd}|S)NcFtjdjd)Nr: r;)r>r?r5messages rrAz5fail_with_message..decorator..wrappedAs+$/MMDMMMGMMNN Nr r)r5rArIs` rr6z$fail_with_message..decorator@s? t O O O O O  Or r1)rIr6s` rfail_with_messagerJ=s$ r c|S)zlOp-op decorator. Used in place of fail_with_message when a functionality that requires extension works fine.r1r4s rno_oprLJs Kr ) importlib.utilr&r functoolsrrstrboolr.rDrJrLr1r rrQs &I#I$IIIIc4   r