Hope you know what you got yourself into, Burmese pythons can typically hit 15 foot and over 100 pounds... but anyway, to answer your question: Albinos do not have melanin in their bodies, that is the dark pigment in the skin. This typically makes them pretty near sighted and sensitive to changes in lighting, and bright light. They should not be taken out in the sun, as they can burn very easily and the light is very hard on their eyes. Heating for them should be provided with an under tank heat pad, not a bulb.
As far as I have seen, there is no reason why it should affect life span though. Burmese pythons can easily reach 20-30 years old if cared for properly. What does affect life span though is the fact that Burmese pythons have been so badly inbred to maintain the albino gene. This also makes them suseptible to
respiratory infections. Overfeeding is also a major factor in Burmese pythons, people tend to feed them way too much because they almost always act like they are hungry - growing too fast can put strain on the internal organs (these snakes can easily hit 7-8 foot in a year if overfed). Plus, bing obese puts extreme demands on the snake's liver, heart and kidneys.
Rav