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[Eiroc]

I'd like to say a coastal carpet as the first snake but they would need to be prepared to get a larger enclosure than 3ft as it grows. Either a tame one that has been purchased from another owner or as a hatchie so that you can get it used to being handled from an early age. An adult 6 to 8 foot python that bites would not be appropriate for any beginner.
Otherwise it would be one of the antaresia species, bought from a breeder - not from an average pet shop. They are easy to look after and handle, but if you don't know the history on it's feeding habits, you could be in for a surprise trying to get it to take food if you end up with a problem one. Many have their own quirky eating tricks and habits, so a beginner would not know how to approach the problem.