&izxddlZddlZddlZddlmZddlmZdefdZdefdZ dedefdZ d edefd Z defd Z y) N) BackendAPI)SUPPORTED_BACKENDSreturncDt}|r t|StS)N)get_backend_in_environmentload_environment_backendchoose_available_backend) env_backends ?/var/www/br/venv/lib/python3.12/site-packages/eth_hash/utils.pyauto_choose_backendr s!,.K' 44'))cBtjjddS)NETH_HASH_BACKEND)osenvirongetr r rrs ::>>,b 11r backend_namecd|}tj|} |j}t |t r|St d|d|d#t$r}t d|d|d|d}~wwxYw)Nzeth_hash.backends.z Import of z failed, because z" does not have 'backend' attributez is an invalid back end) importlib import_modulebackendAttributeError ValueError isinstancer)r import_pathmoduleres r load_backendr s&|n5K  $ $[ 1F..':& %6wi?V W    %6vh?" "  s A A-A((A-r c|tvr t|Std|dt#t$r}td|d|d|d}~wwxYw)Nz,The backend specified in ETH_HASH_BACKEND, 'zC', is not installed. Install with `python -m pip install "eth-hash[]"`.z$', is not supported. Choose one of: )rr ImportErrorr)r rs r rr.s((  , ,:;-H));(< >   >{mL(M/   s * A AA ctD]} t|cStdtdtdd#t$r,tjdj d|dYcwxYw) Neth_hashzFailed to import T)exc_infoz.None of these hashing backends are installed: z0. Install with `python -m pip install "eth-hash[rr")rr r#logging getLoggerdebug)rs r r r ?s% ( (  89K8LM99KA9N8Ot U      j ) / /#G9- 0  s 62A+*A+) rr'r eth_hash.abcreth_hash.backendsrr strrr rr rr r r-sb  *Z*2C2 s z ( # * " * r