Bug report
Bug description:
See also: #139783
Compare:
dummy = lambda f: f # L1
@dummy # L2
def f(): # L3
return # L4
print(f.__code__.co_firstlineno) # L5 # result = 2with
dummy = lambda f: f # L1
pass # L2
def f(): # L3
return # L4
print(f.__code__.co_firstlineno) # L5 # result = 3and
dummy = lambda f: f # L1
@\
dummy # L3
def f(): # L4
return # L5
print(f.__code__.co_firstlineno) # L6 # result = 3In the last example, the line continuation after @ is not handled correctly and the first line for f.__code__ then becomes the line at dummy. Because of that, the values returned by inspect.findsource(f) will not be consistent and inspect.getsourcelines will not use the correct source (it will only start at "dummy" and will not contain the "@" part).
@serhiy-storchaka suggested that this is an issue in the AST parser. I however don't know how we should actually fix this.
Consequences to inspect.getsource and other introspection functions:
import inspect
def outer(*args, **kwargs):
def inner(f):
return f
return deco
@(
outer(
...
)
)
def f():
return "hello"
print(inspect.getsource(f))On Python 3.12, the output is expected:
@(
outer(
...
)
)
def func():
return "hello"On Python 3.13.7, the output is missing the first line @(:
outer(
...
)
)
def func():
return "hello"On Python 3.13.9 and main, we are missing @ and outer parentheses:
CPython versions tested on:
CPython main branch
Operating systems tested on:
No response
Bug report
Bug description:
See also: #139783
Compare:
with
and
In the last example, the line continuation after
@is not handled correctly and the first line forf.__code__then becomes the line at dummy. Because of that, the values returned byinspect.findsource(f)will not be consistent andinspect.getsourcelineswill not use the correct source (it will only start at "dummy" and will not contain the "@" part).@serhiy-storchaka suggested that this is an issue in the AST parser. I however don't know how we should actually fix this.
Consequences to
inspect.getsourceand other introspection functions:On Python 3.12, the output is expected:
On Python 3.13.7, the output is missing the first line
@(:On Python 3.13.9 and
main, we are missing@and outer parentheses:outer( ... )CPython versions tested on:
CPython main branch
Operating systems tested on:
No response