in pyignite/datatypes/primitive_arrays.py [0:0]
def from_python_not_null(cls, stream, value, **kwargs):
cls._write_header(stream, value)
if isinstance(value, (bytes, bytearray)):
stream.write(value)
return
try:
# `value` is a `bytearray` or a sequence of integer values
# in range 0 to 255
value_buffer = bytearray(value)
except ValueError:
# `value` is a sequence of integers in range -128 to 127
value_buffer = bytearray()
for ch in value:
if -128 <= ch <= 255:
value_buffer.append(ctypes.c_ubyte(ch).value)
else:
raise ValueError(
'byte must be in range(-128, 256)!'
) from None
stream.write(value_buffer)