Yury Selivanov added the comment:
Here's an update on #24485 regression.
Looks like getsource() is now using code objects instead of tokenizer to
determine blocks first/last lines.
The problem with this particular case is that "inner" function's code object is
completely independent from "outer"'s.
So, for an outer() function below:
def outer():
def inner():
never_reached1
never_reached2
the code object contains the following opcodes:
71 0 LOAD_CONST 1 (<code object inner ...>)
3 LOAD_CONST 2 ('outer1.<locals>.inner')
6 MAKE_FUNCTION 0
9 STORE_FAST 0 (inner)
12 LOAD_CONST 0 (None)
15 RETURN_VALUE
The correct solution is to use co_lnotab along with co_firstlineno to iterate
through opcodes recursively accounting for MAKE_FUNCTION's code objects.
*However*, I don't think we can solve this for classes, i.e.
def outer_with_class():
class Foo:
b = 1
a = 2
there is no way (as far as I know) to get information about the Foo class
start/end lineno.
I think that the only way we can solve this is to revert the patch for this
issue.
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