New submission from Gabriele N Tornetta <phoenix1...@gmail.com>:
https://bugs.python.org/issue44530 introduced the co_qualname field to code
objects. This could be used to, e.g. enrich the information provided by
tracebacks. Consider this simple example
~~~ python
import traceback
class Bogus:
def __init__(self):
traceback.print_stack()
raise RuntimeError("Oh no!")
class Foo:
def __init__(self):
Bogus()
Foo()
~~~
The current output is
~~~
❯ python3.10 test_tb_format.py
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 15, in <module>
Foo()
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 12, in __init__
Bogus()
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 6, in __init__
traceback.print_stack()
Traceback (most recent call last):
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 15, in <module>
Foo()
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 12, in __init__
Bogus()
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 7, in __init__
raise RuntimeError("Oh no!")
RuntimeError: Oh no!
~~~
The proposed change is to use the co_qualname field instead of co_name to
provide more immediate information about the distinct functions __init__, viz.
~~~
❯ ./python test_tb_format.py
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 15, in <module>
Foo()
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 12, in
Foo.__init__
Bogus()
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 6, in
Bogus.__init__
traceback.print_stack()
Traceback (most recent call last):
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 15, in <module>
Foo()
^^^^^
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 12, in
Foo.__init__
Bogus()
^^^^^^^
File "/home/gabriele/Projects/cpython/test_tb_format.py", line 7, in
Bogus.__init__
raise RuntimeError("Oh no!")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: Oh no!
~~~
This makes it clear that two distinct __init__ functions are involved, without
having to look at sources.
----------
components: Interpreter Core
messages: 412598
nosy: Gabriele Tornetta, pablogsal
priority: normal
severity: normal
status: open
title: Use code.co_qualname to provide richer information
type: enhancement
versions: Python 3.11
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue46652>
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