The quotation is so true. There was a "Python WTFs" posted recently which was fun but the thing is you could work with Python successfully for years without ever running into them. Contrast that with other languages where you need to learn the WTFs before you can stop writing buggy code.
That list of python WTFs was mostly stuff where I was going WTF at the code before even looking what the result was. Stuff like having a try/except with a return in the except block and the finally block.