Originally starting with the Shafrir (Hebrew: שפריר, loosely translated as a dome, or a protective cloak – but also similar sounding to Dragonfly, a male form of inflection for Damselfly (שפירית)) series, the Shafrir-1 missile was developed in 1959, followed by the Shafrir-2 in early 1970s.
Subsequently, the missiles were given the western name of "Python" by the parent company for export purposes, starting with the Python-3 in 1978.
The Python-3 has improved range and all-aspect attack ability, it proved itself before and during the 1982 Lebanon War, destroying 35 enemy aircraft.
[9] In the 1990s Rafael started development on the Python-5 AAM, which was equipped with an advanced electro-optical imaging seeker with lock-on after-launch ability.
[10] The new missile was show-cased in 2003 Paris Air Show, and intended for service with IAF the F-15I Ra'am ("Thunder") and the F-16I Sufa ("Storm").
It was intended to build the domestic defense industry's abilities, and reduce reliance on foreign imports.
[8] The Python-4 is a 4th generation AAM with all-aspect attack ability, and integration with a helmet-mounted sight (HMS) system.
As a short range air-to-air missiles, it is capable of "lock-on after launch" (LOAL), and has full-sphere/all-direction (including rearward) attack ability.
The missile features an advanced seeker which includes an electro-optical and imaging infrared homing seeker which scans the target area for hostile aircraft, then locks-on for terminal chase, and a complex design utilizing a total of eighteen aerodynamic surfaces.
To achieve greater range, a dual-pulse solid rocket motor is added, where the secondary pulse of energy as the missile nears the target extends flight time.