Operation `` Python '' , a follow-up to Operation `` Trident '' , was the code name of a naval attack launched on West Pakistan 's port city of Karachi by the Indian Navy during the Indo-Pakistani War of 1971 .

To counter these moves , Operation `` Python '' was launched Process_start on the night of 8/9 December 1971 .

Trident was followed up by Operation Python three days later .

Co-founded Collaboration by Monty Python member John Cleese , campaigner Peter Luff ( Assistant Director Amnesty International 1974–1978 ) , and entertainment industry executive Martin Lewis , there have been four distinct eras of the Amnesty benefit shows Social_event .

The shows Social_event of the first era ( 1976–1981 ) , featuring Cause_to_be_included five members of Monty Python and newcomers such as Rowan Atkinson , yielded films , television specials , home-videos , and albums that have since been widely seen Perception_active and heard Perception_active internationally .