Pythons in SW Florida are found to have dangerously high levels of mercury[0] so it may not be as perfectly good as hoped for.
All the better for a tuna substitute!
More seriously, from your article
>4.86 mg/kg in liver tissue from a snake that was 4.7 m long but overall averaged 0.12 ± 0.19 mg/kg in tail tip
Tuna looks like it's about 0.39 mg/kg, so the liver tissue is suuuuper high but the tail tip is just normal high mercury.
So nothing like.
Shame about the miner incident.