# Path: rlp/exceptions.py
# class DeserializationError(RLPException):
#     """Exception raised if deserialization fails.
# 
#     :ivar serial: the decoded RLP string that could not be deserialized
#     """
# 
#     def __init__(self, message, serial):
#         super(DeserializationError, self).__init__(message)
#         self.serial = serial
# 
# class SerializationError(RLPException):
#     """Exception raised if serialization fails.
# 
#     :ivar obj: the object that could not be serialized
#     """
# 
#     def __init__(self, message, obj):
#         super(SerializationError, self).__init__(message)
#         self.obj = obj


from eth_utils import (
    int_to_big_endian,
    big_endian_to_int,
)
from rlp.exceptions import DeserializationError, SerializationError
              use the shortest possible one
    """

    def __init__(self, l=None):
        self.l = l

    def serialize(self, obj):
        if isinstance(obj, bool) or not isinstance(obj, int):
            raise SerializationError('Can only serialize integers', obj)
        if self.l is not None and obj >= 256**self.l:
            raise SerializationError('Integer too large (does not fit in {} '
                                     'bytes)'.format(self.l), obj)
        if obj < 0:
            raise SerializationError('Cannot serialize negative integers', obj)

        if obj == 0:
            s = b''
        else:
            s = int_to_big_endian(obj)

        if self.l is not None:
            return b'\x00' * max(0, self.l - len(s)) + s
        else:
            return s

    def deserialize(self, serial):
        if self.l is not None and len(serial) != self.l:
            raise DeserializationError('Invalid serialization (wrong size)',
                                       serial)
        if self.l is None and len(serial) > 0 and serial[0:1] == b'\x00':

# Path: rlp/exceptions.py
# class DeserializationError(RLPException):
#     """Exception raised if deserialization fails.
# 
#     :ivar serial: the decoded RLP string that could not be deserialized
#     """
# 
#     def __init__(self, message, serial):
#         super(DeserializationError, self).__init__(message)
#         self.serial = serial
# 
# class SerializationError(RLPException):
#     """Exception raised if serialization fails.
# 
#     :ivar obj: the object that could not be serialized
#     """
# 
#     def __init__(self, message, obj):
#         super(SerializationError, self).__init__(message)
#         self.obj = obj


# Path: rlp/sedes/big_endian_int.py
from eth_utils import (
    int_to_big_endian,
    big_endian_to_int,
)
from rlp.exceptions import DeserializationError, SerializationError

              use the shortest possible one
    """

    def __init__(self, l=None):
        self.l = l

    def serialize(self, obj):
        if isinstance(obj, bool) or not isinstance(obj, int):
            raise SerializationError('Can only serialize integers', obj)
        if self.l is not None and obj >= 256**self.l:
            raise SerializationError('Integer too large (does not fit in {} '
                                     'bytes)'.format(self.l), obj)
        if obj < 0:
            raise SerializationError('Cannot serialize negative integers', obj)

        if obj == 0:
            s = b''
        else:
            s = int_to_big_endian(obj)

        if self.l is not None:
            return b'\x00' * max(0, self.l - len(s)) + s
        else:
            return s

    def deserialize(self, serial):
        if self.l is not None and len(serial) != self.l:
            raise DeserializationError('Invalid serialization (wrong size)',
                                       serial)
        if self.l is None and len(serial) > 0 and serial[0:1] == b'\x00':

            raise DeserializationError('Invalid serialization (not minimal '