bug#51646: python-furl import bug?

[jgart]

I ran the following command:

guix shell bpython -D python-wrapper python-furl  -- bpython

bpython version 0.20.1 on top of Python 3.8.2 
/gnu/store/nckjv3ccwdi6096j478gvns43ssbls2p-python-wrapper-3.8.2/bin/python
>>> from furl import furl
Traceback (most recent call last):
  File "<input>", line 1, in <module>
    from furl import furl
  File "/gnu/store/d0mgjzpgm08147nnijv96yfq8bjny4ri-profile/lib/python
3.8/site-packages/furl/__init__.py", line 13, in <module>
    from .furl import *  # noqa
  File "/gnu/store/d0mgjzpgm08147nnijv96yfq8bjny4ri-profile/lib/python
3.8/site-packages/furl/furl.py", line 19, in <module>
    from six.moves import urllib
  File "/gnu/store/hjmz8ymac939ribn7g3jkgms4dk2az3a-python-six-1.14.0/
lib/python3.8/site-packages/six.py", line 92, in __get__
    result = self._resolve()
  File "/gnu/store/hjmz8ymac939ribn7g3jkgms4dk2az3a-python-six-1.14.0/
lib/python3.8/site-packages/six.py", line 115, in _resolve
    return _import_module(self.mod)
  File "/gnu/store/hjmz8ymac939ribn7g3jkgms4dk2az3a-python-six-1.14.0/
lib/python3.8/site-packages/six.py", line 82, in _import_module
    __import__(name)
ModuleNotFoundError: No module named 'six.moves.urllib'