..pythons are dangerous for humans:
Thirteen Foot Burmese Python Kills OwnerBased on a New York Times Report by David Herszenhorn. Thursday - October 10, 1996.
According to the New York Times, 19-year old Grant Williams of 365 East 183rd Street Bronx died as the result of an attack by his 13 foot long Burmese Python which may have mistaken him as food.
http://www.anapsid.org/nyburm.htmland
Pet Python Kills Man in IndianaTuesday, September 05, 2006 LANESVILLE, Ind.
A 14-foot pet python crushed its owner to death, authorities said Tuesday after finding the snake loose in a southern Indiana shed with the man's body.
http://www.foxnews.com/story/0,2933,212220,00.html..but can also be pets
A 7-year old boy from Cambodia and his friend, a 17 feet pythonhttp://www.spiegel.de/reise/fernweh/0,1518...-533567,00.html