Can’t pip install alpha_vantage

$ pip install alpha_vantage
Defaulting to user installation because normal site-packages is not writeable
Collecting alpha_vantage
Using cached alpha_vantage-2.2.0.tar.gz (20 kB)
Collecting aiohttp
Downloading aiohttp-3.7.3.tar.gz (1.1 MB)
|████████████████████████████████| 1.1 MB 5.4 MB/s
Installing build dependencies ... done
Getting requirements to build wheel ... error
ERROR: Command errored out with exit status 1:
command: /private/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/bin/python3 /priva
te/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/lib/python3.9/site-packages/pip/_ven
dor/pep517/_in_process.py get_requires_for_build_wheel /private/var/mobile/Containers/Data/Application/5190CF10-63B9-4B91-96D9-01E
8E7A9354B/tmp/tmpc7msk7ga
cwd: /private/var/mobile/Containers/Data/Application/5190CF10-63B9-4B91-96D9-01E8E7A9354B/tmp/pip-install-9dxitel4/aiohttp
Complete output (12 lines):
Traceback (most recent call last):
File "/private/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py", line 280, in
main()
File "/private/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py", line 263, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
File "/private/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py", line 108, in get_requires_for_build_wheel
backend = _build_backend()
File "/private/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py", line 83, in _build_backend
ep = os.environ['PEP517_BUILD_BACKEND']
File "/private/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/lib/python3.9/os.py", line 682, in __getitem__
raise KeyError(key) from None
KeyError: 'PEP517_BUILD_BACKEND'
----------------------------------------
ERROR: Command errored out with exit status 1: /private/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/bin/python3 /private/var/containers/Bundle/Application/0510C216-9D53-4265-A377-3BF884E7CB5D/a-Shell.app/Library/lib/python3.9/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /private/var/mobile/Containers/Data/Appl
ication/5190CF10-63B9-4B91-96D9-01E8E7A9354B/tmp/tmpc7msk7ga Check the logs for full command output.