def _warn_about_conflicts(self, to_install):
try:
package_set, _dep_info = check_install_conflicts(to_install)
except Exception:
logger.error("Error checking for conflicts.", exc_info=True)
return
missing, conflicting = _dep_info
# NOTE: There is some duplication here from pip check
for project_name in missing:
version = package_set[project_name][0]
for dependency in missing[project_name]:
logger.critical(
"%s %s requires %s, which is not installed.",
project_name,
version,
dependency[1],
)
for project_name in conflicting:
version = package_set[project_name][0]
for dep_name, dep_version, req in conflicting[project_name]:
logger.critical(
"%s %s has requirement %s, but you'll have %s %s which is "
"incompatible.",
project_name,
version,
req,
dep_name,
dep_version,
)
def _warn_about_conflicts(self, to_install):
try:
package_set, _dep_info = check_install_conflicts(to_install)
except Exception:
logger.error("Error checking for conflicts.", exc_info=True)
return
missing, conflicting = _dep_info
# NOTE: There is some duplication here from pip check
for project_name in missing:
version = package_set[project_name][0]
for dependency in missing[project_name]:
logger.critical(
"%s %s requires %s, which is not installed.",
project_name, version, dependency[1],
)
for project_name in conflicting:
version = package_set[project_name][0]
for dep_name, dep_version, req in conflicting[project_name]:
logger.critical(
"%s %s has requirement %s, but you'll have %s %s which is "
"incompatible.",
project_name, version, req, dep_name, dep_version,
)
def _determine_conflicts(self, to_install):
# type: (List[InstallRequirement]) -> Optional[ConflictDetails]
try:
return check_install_conflicts(to_install)
except Exception:
logger.exception(
"Error while checking for conflicts. Please file an issue on "
"pip's issue tracker: https://github.com/pypa/pip/issues/new")
return None
