pip install doesn't work on python 3.8

[mccalluc]

I made a fresh environment and was curious whether I'd have any problems with 3.8. I got this error:

$ pip install -r requirements.txt
Collecting loompy==2.0.16
  Downloading loompy-2.0.16.tar.gz (31 kB)
Collecting pypng==0.0.19
  Downloading pypng-0.0.19.tar.gz (293 kB)
     |████████████████████████████████| 293 kB 5.3 MB/s
Collecting scikit-learn==0.20.3
  Downloading scikit-learn-0.20.3.tar.gz (11.8 MB)
     |████████████████████████████████| 11.8 MB 6.9 MB/s
Collecting iiif==1.0.6
  Downloading iiif-1.0.6.tar.gz (546 kB)
     |████████████████████████████████| 546 kB 21.4 MB/s
Collecting pandas==0.24.1
  Downloading pandas-0.24.1.tar.gz (11.8 MB)
     |████████████████████████████████| 11.8 MB 11.7 MB/s
    ERROR: Command errored out with exit status 1:
     command: /opt/anaconda3/envs/v-data/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/2f/yvyq4r852yxg3xf902p52w5h0000gn/T/pip-install-bjzh85dh/pandas/setup.py'"'"'; __file__='"'"'/private/var/folders/2f/yvyq4r852yxg3xf902p52w5h0000gn/T/pip-install-bjzh85dh/pandas/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /private/var/folders/2f/yvyq4r852yxg3xf902p52w5h0000gn/T/pip-install-bjzh85dh/pandas/pip-egg-info
         cwd: /private/var/folders/2f/yvyq4r852yxg3xf902p52w5h0000gn/T/pip-install-bjzh85dh/pandas/
    Complete output (18 lines):
    Traceback (most recent call last):
      File "/opt/anaconda3/envs/v-data/lib/python3.8/site-packages/pkg_resources/__init__.py", line 360, in get_provider
        module = sys.modules[moduleOrReq]
    KeyError: 'numpy'

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/2f/yvyq4r852yxg3xf902p52w5h0000gn/T/pip-install-bjzh85dh/pandas/setup.py", line 732, in <module>
        ext_modules=maybe_cythonize(extensions, compiler_directives=directives),
      File "/private/var/folders/2f/yvyq4r852yxg3xf902p52w5h0000gn/T/pip-install-bjzh85dh/pandas/setup.py", line 475, in maybe_cythonize
        numpy_incl = pkg_resources.resource_filename('numpy', 'core/include')
      File "/opt/anaconda3/envs/v-data/lib/python3.8/site-packages/pkg_resources/__init__.py", line 1145, in resource_filename
        return get_provider(package_or_requirement).get_resource_filename(
      File "/opt/anaconda3/envs/v-data/lib/python3.8/site-packages/pkg_resources/__init__.py", line 362, in get_provider
        __import__(moduleOrReq)
    ModuleNotFoundError: No module named 'numpy'
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.