Exceptions Reference

All custom exceptions raised by pysafe-pickle inherit from PySafePickleError.

Hierarchy

text

Exception
 └── PySafePickleError (alias: PyGraphError)
      ├── UnsafeTypeError
      ├── SchemaVersionError
      └── HMACError

`PySafePickleError`

(Alias: PyGraphError)

Base exception for all errors raised by pysafe-pickle.

`UnsafeTypeError`

Raised during deserialization when an object type is not in the allowlist or is an unsupported Python type (e.g. lambdas, arbitrary executable functions, system modules).

`SchemaVersionError`

Raised when a version mismatch between serialized data and the runtime class definition cannot be resolved by any registered migration chain.

`HMACError`

Raised when cryptographic HMAC-SHA256 signature verification fails, indicating that the serialized data has been altered, truncated, or tampered with.

Exceptions Reference ​

Hierarchy ​

PySafePickleError ​

UnsafeTypeError ​

SchemaVersionError ​

HMACError ​