def sort_dependencies(self, dependencies: List[Dependency],
activated: DependencyGraph,
conflicts: Dict[str, List[Conflict]]):
return sorted(dependencies,
key=lambda d: [
0 if activated.vertex_named(d.name).payload else 1, 0
if d.allows_prereleases() else 1, 0
if d.name in conflicts else 1, 0
if activated.vertex_named(d.name).payload else len(
self.search_for(d))
])
def is_requirement_satisfied_by(self, requirement: Dependency,
activated: DependencyGraph,
package: Package) -> bool:
"""
Determines whether the given requirement is satisfied by the given
spec, in the context of the current activated dependency graph.
"""
if isinstance(requirement, Package):
return requirement == package
if not requirement.accepts(package):
return False
if package.is_prerelease() and not requirement.allows_prereleases():
vertex = activated.vertex_named(package.name)
if not any([r.allows_prereleases() for r in vertex.requirements]):
return False
return self._package.python_constraint.matches(
package.python_constraint)