Setuptools can't find 'find_namespace_packages'

[nckswt]

I have a package I'm trying to deploy, but It looks like setuptools doesn't have find_namespace_packages. This project had previously compiled, but I'd recently added a (private) dependency that uses find_namespace_packages and now deploys are broken.

I'm pretty surprised by this, given that find_namespace_pacakges was introduced in Python 3.3 and the docker image is clearly using /usr/bin/python3.8.

I haven't (to my knowledge) done anything that might clobber the setuptools import path... what gives? Honestly not sure where to start debugging this. Possibly making my own version of the builder dockerfile? Or asking about this issue there? Is this the same issue as noted here?

$ ./node_modules/serverless/bin/serverless.js deploy -vvv -r us-east-1 -s stg --acct stg --force
Serverless: Generating requirements.txt from Pipfile...
Serverless: Parsed requirements.txt from Pipfile in /home/nick/sandbox/tycho/tycho-map-processor-service/.serverless/requirements.txt...
Serverless: Installing requirements from /home/nick/.cache/serverless-python-requirements/241bdb14788154d50092559135c41a90facb327c58c7991141c2ee50d37c88dc_slspyc/requirements.txt ...
Serverless: Using download cache directory /home/nick/.cache/serverless-python-requirements/downloadCacheslspyc
Serverless: Running ...
 
  Error --------------------------------------------------
 
  Error: STDOUT: Looking in links: https://download.pytorch.org/whl/torch_stable.html
  Processing /home/nick/sandbox/tycho/tycho-map-processor-service
  
  
  STDERR:     ERROR: Command errored out with exit status 1:
       command: /usr/bin/python3.8 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-emb8dhx3/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-emb8dhx3/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 /tmp/pip-pip-egg-info-7ii6zzfu
           cwd: /tmp/pip-req-build-emb8dhx3/
      Complete output (5 lines):
      Traceback (most recent call last):
        File "<string>", line 1, in <module>
        File "/tmp/pip-req-build-emb8dhx3/setup.py", line 4, in <module>
          from setuptools import setup, find_namespace_packages
      ImportError: cannot import name 'find_namespace_packages' from 'setuptools' (/usr/lib/python3/dist-packages/setuptools/__init__.py)
      ----------------------------------------
  ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
  
      at /home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/lib/pip.js:325:13
      at Array.forEach (<anonymous>)
      at installRequirements (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/lib/pip.js:312:28)
      at installRequirementsIfNeeded (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/lib/pip.js:556:3)
      at ServerlessPythonRequirements.installAllRequirements (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/lib/pip.js:635:29)
      at ServerlessPythonRequirements.tryCatcher (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/util.js:16:23)
      at Promise._settlePromiseFromHandler (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/promise.js:547:31)
      at Promise._settlePromise (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/promise.js:604:18)
      at Promise._settlePromise0 (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/promise.js:649:10)
      at Promise._settlePromises (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/promise.js:729:18)
      at _drainQueueStep (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/async.js:93:12)
      at _drainQueue (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/async.js:86:9)
      at Async._drainQueues (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/async.js:102:5)
      at Immediate.Async.drainQueues [as _onImmediate] (/home/nick/sandbox/tycho/tycho-map-processor-service/node_modules/serverless-python-requirements/node_modules/bluebird/js/release/async.js:15:14)
      at processImmediate (internal/timers.js:439:21)
      at process.topLevelDomainCallback (domain.js:131:23)
 
     For debugging logs, run again after setting the "SLS_DEBUG=*" environment variable.
 
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