bcrypt.py 文件源码

def _norm_checksum(self, checksum, relaxed=False):
        checksum = super(_BcryptCommon, self)._norm_checksum(checksum, relaxed=relaxed)
        changed, checksum = bcrypt64.check_repair_unused(checksum)
        if changed:
            warn(
                "encountered a bcrypt hash with incorrectly set padding bits; "
                "you may want to use bcrypt.normhash() "
                "to fix this; this will be an error under Passlib 2.0",
                PasslibHashWarning)
        return checksum

    #===================================================================
    # backend configuration
    # NOTE: backends are defined in terms of mixin classes,
    #       which are dynamically inserted into the bases of the 'bcrypt' class
    #       via the machinery in 'SubclassBackendMixin'.
    #       this lets us load in a backend-specific implementation
    #       of _calc_checksum() and similar methods.
    #===================================================================

    # NOTE: backend config is located down in <bcrypt> class

    # NOTE: set_backend() will execute the ._load_backend_mixin()
    #       of the matching mixin class, which will handle backend detection

    # appended to HasManyBackends' "no backends available" error message