conrad@serotonin ~ $ PYTHONPATH=$HOME/hack/billiard python
Python 3.10.8 (main, Nov 1 2022, 14:18:21) [GCC 12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import billiard
>>> billiard.VERSION
(3, 6, 4, 0)
>>> billiard.__file__
'/home/conrad/hack/billiard/billiard/__init__.py'
>>> __requires__ = ['billiard<4.0,>=3.6.4.0']
>>> import pkg_resources
Traceback (most recent call last):
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 581, in _build_master
ws.require(__requires__)
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 909, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 800, in resolve
raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.VersionConflict: (billiard 4.0.2 (/usr/lib/python3.10/site-packages), Requirement.parse('billiard<4.0,>=3.6.4.0'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 3260, in <module>
def _initialize_master_working_set():
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 3234, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 3272, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 583, in _build_master
return cls._build_from_requirements(__requires__)
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 596, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/usr/lib/python3.10/site-packages/pkg_resources/__init__.py", line 795, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'billiard<4.0,>=3.6.4.0' distribution was not found and is required by the application
>>>