When trying to install a package (zipline, in this case), it's struggling to find the setuptools.build_meta file, which I do have in the site-packages\setuptools directory. I tried dropping this file into the site-packages\pip\_vendor\pep517 directly, with no change. The traceback is below: ERROR: Exception: Traceback (most recent call last): File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\cli\base_command.py", line 186, in _main status = self.run(options, args) File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\commands\install.py", line 331, in run resolver.resolve(requirement_set) File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\legacy_resolve.py", line 177, in resolve discovered_reqs.extend(self._resolve_one(requirement_set, req)) File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\legacy_resolve.py", line 333, in _resolve_one abstract_dist = self._get_abstract_dist_for(req_to_install) File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\legacy_resolve.py", line 282, in _get_abstract_dist_for abstract_dist = self.preparer.prepare_linked_requirement(req) File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\operations\prepare.py", line 516, in prepare_linked_requirement req, self.req_tracker, self.finder, self.build_isolation, File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\operations\prepare.py", line 95, in _get_prepared_distribution abstract_dist.prepare_distribution_metadata(finder, build_isolation) File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\distributions\sdist.py", line 38, in prepare_distribution_metadata self._setup_isolation(finder) File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_internal\distributions\sdist.py", line 96, in _setup_isolation reqs = backend.get_requires_for_build_wheel() File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_vendor\pep517\wrappers.py", line 152, in get_requires_for_build_wheel 'config_settings': config_settings File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_vendor\pep517\wrappers.py", line 255, in _call_hook raise BackendUnavailable(data.get('traceback', '')) pip._vendor.pep517.wrappers.BackendUnavailable: Traceback (most recent call last): File "C:\Users\justjo\PycharmProjects\python35_venv\lib\site-packages\pip\_vendor\pep517\_in_process.py", line 63, in _build_backend obj = import_module(mod_path) File "C:\Program Files\Python35\lib\importlib\__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 985, in _gcd_import File "<frozen importlib._bootstrap>", line 968, in _find_and_load File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked ImportError: No module named 'setuptools.build_meta' Continue reading...