Just curious: Is python with vs. without "-O" equivalent today regarding line numbers? Are SET_LINENO opcodes a plus in some situations or not? Next, I see quite often several SET_LINENO in a row in the beginning of code objects due to doc strings, etc. Since I don't think that folding them into one SET_LINENO would be an optimisation (it would rather be avoiding the redundancy), is it possible and/or reasonable to do something in this direction? A trivial example:
def f(): ... "This is a comment about f" ... a = 1 ... import dis dis.dis(f) 0 SET_LINENO 1
3 SET_LINENO 2 6 SET_LINENO 3 9 LOAD_CONST 1 (1) 12 STORE_FAST 0 (a) 15 LOAD_CONST 2 (None) 18 RETURN_VALUE
Can the above become something like this instead: 0 SET_LINENO 3 3 LOAD_CONST 1 (1) 6 STORE_FAST 0 (a) 9 LOAD_CONST 2 (None) 12 RETURN_VALUE -- Vladimir MARANGOZOV | Vladimir.Marangozov@inrialpes.fr http://sirac.inrialpes.fr/~marangoz | tel:(+33-4)76615277 fax:76615252