| |
| |
| def check_requirements(installed_dists): |
| missing_reqs_dict = {} |
| incompatible_reqs_dict = {} |
| |
| for dist in installed_dists: |
| key = '%s==%s' % (dist.project_name, dist.version) |
| |
| missing_reqs = list(get_missing_reqs(dist, installed_dists)) |
| if missing_reqs: |
| missing_reqs_dict[key] = missing_reqs |
| |
| incompatible_reqs = list(get_incompatible_reqs( |
| dist, installed_dists)) |
| if incompatible_reqs: |
| incompatible_reqs_dict[key] = incompatible_reqs |
| |
| return (missing_reqs_dict, incompatible_reqs_dict) |
| |
| |
| def get_missing_reqs(dist, installed_dists): |
| """Return all of the requirements of `dist` that aren't present in |
| `installed_dists`. |
| |
| """ |
| installed_names = set(d.project_name.lower() for d in installed_dists) |
| missing_requirements = set() |
| |
| for requirement in dist.requires(): |
| if requirement.project_name.lower() not in installed_names: |
| missing_requirements.add(requirement) |
| yield requirement |
| |
| |
| def get_incompatible_reqs(dist, installed_dists): |
| """Return all of the requirements of `dist` that are present in |
| `installed_dists`, but have incompatible versions. |
| |
| """ |
| installed_dists_by_name = {} |
| for installed_dist in installed_dists: |
| installed_dists_by_name[installed_dist.project_name] = installed_dist |
| |
| for requirement in dist.requires(): |
| present_dist = installed_dists_by_name.get(requirement.project_name) |
| |
| if present_dist and present_dist not in requirement: |
| yield (requirement, present_dist) |
