An error occurred within SPCFileWriter

[AnnNing]

from SPyC_Writer.SPCFileWriter import SPCFileWriter

writer = SPCFileWriter(SPCFileType.DEFAULT)

then

Traceback (most recent call last):
  File "test.py", line 1, in <module>
    from SPyC_Writer.SPCFileWriter import SPCFileWriter
  File "H:\python\SPyC_Writer-main\src\SPyC_Writer\SPCFileWriter.py", line 48, in <module>
    from .SPCHeader import SPCHeader
  File "H:\python\SPyC_Writer-main\src\SPyC_Writer\SPCHeader.py", line 16, in <module>
    class SPCHeader:
  File "H:\python\SPyC_Writer-main\src\SPyC_Writer\SPCHeader.py", line 41, in SPCHeader
    custom_axes: list[str] = field(default_factory=list) # (fcatxt)
TypeError: 'type' object is not subscriptable

Python version：

Python 3.8.3 (tags/v3.8.3:6f8c832, May 13 2020, 22:37:02) [MSC v.1924 64 bit (AMD64)] on win32

[AnnNing]

I add some code, it's ok now.

SPCFileWriter.py

add from typing import List
change custom_units: list[str] = field(default_factory=list), to custom_units: List[str] = field(default_factory=list),

SPCHeader.py

add from typing import List
change custom_axes: list[str] = field(default_factory=list) to custom_axes: List[str] = field(default_factory=list)

[rc14193]

Adding for reference here this SO thread. Python 3.9 added lists and tuples as part of the standard library and their capital in the typing module List have been deprecated