def uninstall_package(name):
installed = get_installed_packages()
if name not in installed:
return InstallationStatuses.NOT_INSTALLED
package = installed.get(name)
formula = import_formula_module(package.get('formula_name'))
if not formula:
return InstallationStatuses.BAD_FORMULA
status = formula.uninstall()
if status != InstallationStatuses.UNINSTALL_OK:
return status
package = Package.get(name=name)
package.delete_instance()
return status
