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from .errors import ServerException
from .reader import read_binary_str, read_binary_uint8, read_binary_int32
def read_exception(buf, additional_message=None):
code = read_binary_int32(buf)
name = read_binary_str(buf)
message = read_binary_str(buf)
stack_trace = read_binary_str(buf)
has_nested = bool(read_binary_uint8(buf))
new_message = ''
if additional_message:
new_message += additional_message + '. '
if name != 'DB::Exception':
new_message += name + ". "
new_message += message + ". Stack trace:\n\n" + stack_trace
nested = None
if has_nested:
nested = read_exception(buf)
return ServerException(new_message, code, nested=nested)
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