Is it permissible for a woman who has been irrevocably divorced, and is in her waiting period (iddah), to attend weddings?

An 'iddah observer (a woman in her waiting period) may go out during the day to attend to her needs, whether she is divorced or widowed, based on the hadith of Jabir and the story of the women whose husbands were martyred at Uhud. However, she is not permitted to spend the night outside her home or go out at night unless absolutely necessary. The Malikis permitted the 'iddah observer to attend a wedding, provided she does not adorn herself or spend the night anywhere but her own home.