TypeError: cannot use a string pattern on a bytes-like object

[jkirk]

After converting to Python3 regional-diff.py fails with following error:

root@9ce9c82d1ce7:/code# scripts/regional-diff.py -f scripts/637.osc.gz 
Traceback (most recent call last):
  File "/code/scripts/regional-diff.py", line 554, in <module>
    posm = PlanetOsm()
           ^^^^^^^^^^^
  File "/code/scripts/regional-diff.py", line 130, in __init__
    self.update()
  File "/code/scripts/regional-diff.py", line 517, in update
    self.__osmosis()
  File "/code/scripts/regional-diff.py", line 206, in __osmosis
    changed_stream = re.sub('delete>','modify>',simplified_diff)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/re/__init__.py", line 185, in sub
    return _compile(pattern, flags).sub(repl, string, count)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: cannot use a string pattern on a bytes-like object