Uploading to MAiX BiT failing in PlatformIO

I can’t upload a program to MAiX BiT using PlatformIO. I’ve tried this on both Win10 with PIO in VS Code, and on Ubuntu Linux with PIO in Atom, and I get the same failure. In both cases, the kflash script fails with the following trace:

Traceback (most recent call last):
  File "C:\Users\markp\.platformio\packages\tool-kflash-kendryte210\kflash.py", line 13, in <module>
    import argparse
  File "C:\Users\markp\.platformio\python37\lib\argparse.py", line 87, in <module>
    import re as _re
  File "C:\Users\markp\.platformio\python37\lib\re.py", line 143, in <module>
    class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'
*** [upload] Error 1

It seems like a problem with the enum package in Python, but it’s a mystery. I have the latest Python loaded (3.7.4). This is painful, as this used to work some weeks ago. Anyone have any idea how to fix this?

Thanks!
M.

maybe you can rename dir [enum] to [enum_xxx] in ~\.platformio\packages\tool-kflash-kendryte210
I think this directory may have caused the conflict

It works!
Thanks