pytest test discovery error

[731315163]

pytest test discovery error for workspace:TypeError: unsupported operand type(s) for |: 'types.UnionType' and 'str' Check Python Logs for more details.
python version :3.12.10
pytest version :8.4.1
vs:1.101
log
'
2025-07-06 16:33:58.316 [error] pytest test discovery error for workspace: c:\project\python\fetchdata
TypeError: unsupported operand type(s) for |: 'types.UnionType' and 'str'
Check Python Logs for more details.

TypeError: unsupported operand type(s) for |: 'types.UnionType' and 'str'
Check Python Logs for more details.

TypeError: unsupported operand type(s) for |: 'types.UnionType' and 'str'
Check Python Logs for more details.

Interrupted: 3 errors during collection
Check Python Logs for more details.
2025-07-06 16:33:58.316 [info] =========================== short test summary info ===========================
ERROR tests/test_exchange.py - TypeError: unsupported operand type(s) for |: ...
ERROR tests/test_factory.py - TypeError: unsupported operand type(s) for |: '...
ERROR tests/test_util.py - TypeError: unsupported operand type(s) for |: 'typ...
!!!!!!!!!!!!!!!!!!! Interrupted: 3 errors during collection !!!!!!!!!!!!!!!!!!!
==================== no tests collected, 3 errors in 1.52s ====================

2025-07-06 16:33:58.582 [error] Subprocess exited unsuccessfully with exit code 2 and signal null on workspace c:\project\python\fetchdata.
2025-07-06 16:33:58.582 [error] Subprocess exited unsuccessfully with exit code 2 and signal null on workspace c:\project\python\fetchdata. Creating and sending error discovery payload
2025-07-06 16:33:58.582 [error] pytest test discovery error for workspace: c:\project\python\fetchdata

The python test process was terminated before it could exit on its own, the process errored with: Code: 2, Signal: null for workspace c:\project\python\fetchdata

'

[731315163]

`
class TimeStamp(float):
"""
TimeStamp class
"""

# 定义特殊的空时间戳值，使用不可能的时间戳
_EMPTY_VALUE = float('inf')

# 私有类变量存储空实例
_empty_instance = None

@classmethod
def get_empty(cls) -> 'TimeStamp':
    """获取空时间戳实例（单例）"""
    if cls._empty_instance is None:
        cls._empty_instance = super().__new__(cls, cls._EMPTY_VALUE)
    return cls._empty_instance

# 使用类属性替代property
@property
def empty(cls) -> 'TimeStamp':
    return cls.get_empty()

@property
def is_empty(self) -> bool:
    """检查是否为空时间戳"""
    return self ==TimeStamp.empty
def __new__(cls, timestamp: float| int| datetime|'TimeStamp'):
    # Convert different input types to timestamp in milliseconds
  
  
    if timestamp is None or timestamp == cls._EMPTY_VALUE:
        return cls.get_empty()
    if isinstance(timestamp, TimeStamp):
        ms = timestamp.ms
    else:
        if isinstance(timestamp, datetime):
            ts = timestamp.timestamp() * 1000  # Convert to milliseconds
        elif isinstance(timestamp, (float,int)):
            ts = timestamp
        ms = cls.timestamp_to_timestamp(ts, unit="ms")
    return super().__new__(cls, ms)

`