One point I'm surprised nobody raised is....
Spurs are a good "indicator" of sex but not totally reliable, some males will have smaller spurs while some females will have longer ones.
So the answer to your questions is, no - the two "claws" does not mean it is for sure a male.
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Thanks,
Dave Colling

www.rainbows-r-us-reptiles.com
0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)
LOL, to many snakes to list, last count:
26.49 BRB
20.21 BCI
And those are only the breeders 
lots.lots.lots feeder mice and rats 

